Category: Writing

A scientific view of domestication.

Of our dogs, of course!

You may recall that back on the 15th of this month, I posted a Note to Readers that spoke about my need to be focused on the editing of my manuscript. Here’s part of that note:

Dear readers, we are talking hours of revisions that I need, and want, to make.

All of which is my way of saying that if my posts over the next couple of weeks more strongly lean on the republishing of other material then you will understand why. In all cases I will endeavour to republish articles that are likely to interest you, of course!

Late yesterday, I completed the many revisions to the manuscript recommended by Joni Wilson but still have more days of formatting changes ahead.

Thus another republication of an item, this time an article that appeared on the Smithsonian website.

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Domestication Seems to Have Made Dogs a Bit Dim

Thanks to their relationship with us, dogs are less adept at solving tricky puzzles than their wolf relatives

It's OK, buddy. We're here to help. (stelo/iStock)
It’s OK, buddy. We’re here to help. (stelo/iStock)

By Rachel Nuwer, smithsonian.com, September 15, 2015

Dogs are considered some of the most intelligent animals on the planet. Thanks to a relationship with humans that dates back tens of thousands of years, dogs can respond to emotions, recognize numerous words and be trained to follow commands.

Notably, these seemingly smart accomplishments all hinge on the partnership between our two species. Now, however, tests of canine problem-solving skills indicate that dogs rely on humans so much that we actually seem to be dumbing them down.

Most studies that investigate dog intelligence assume that certain interactions with humans are indicative of higher cognitive function. In one experiment, for example, dogs and human-socialized wolves were presented with a canine version of the Kobayashi Maru — an unopenable box that contained food.

When confronted with a difficult task, dogs often turn to us—their human masters—for guidance, indicating their puzzlement with a cock of the head and eyes that seem to implore for help. Indeed, the dogs in the study quickly gave up and simply stared at the nearest human. The wolves, on the other hand, sought out no such help and persisted at trying to solve the impossible puzzle on their own.

Researchers usually interpret such findings as a sign of dogs’ intelligence; the wolves kept trying to win the no-win scenario, while the dogs knew that humans could help out with tasks they themselves could not solve.

But depending on humans for help is not necessarily a cognitive asset, points out Monique Udell, an assistant professor of animal and rangeland sciences at Oregon State University.

If dogs only turn to humans when presented with an impossible task—not a solvable one—then their “look back” behavior would indeed be advantageous. On the other hand, if they simply throw their paws up at the slightest hint of cognitive challenge, then that could indicate “a conditioned inhibition of problem-solving behavior,” as Udell puts it. Like a child whose parents always give away the answers to homework, dogs may be overly reliant on us, she surmised.

To test this hypothesis, Udell presented ten pet dogs and ten human-socialized wolves with a solvable puzzle. Sausage was placed inside a sealed plastic tub with a lid that included a bit of rope. With some paw and mouth finagling, the lid could be opened.

She also included ten shelter dogs in the study, because past research shows that shelter dogs are initially less responsive to humans compared to established pets. These animals acted as a sort of intermediary between hyper-socialized dogs and wolves.

Crazy smart, like a wolf. (Kaphoto/iStock)
Crazy smart, like a wolf. (Kaphoto/iStock)

Udell presented the canines with the puzzle box both in the presence of humans—an owner, caretaker or familiar person—and without any person nearby. Each time, the animals had two minutes to figure out how to get at the sausage. Subjects that failed in both trials were given a third and final try in which they also received verbal encouragement from their human friend.

Udell’s findings, reported today in the journal Biology Letters, were telling. In the presence of humans, just one pet dog and none of the shelter dogs managed to open the box. Eight out of ten of the wolves, however, succeeded in enjoying the sausage treat inside.

Wolves also spent more time chipping away at the problem and more time staring at the box, as if working out how to open it. Both pet and shelter dogs, on the other hand, did the opposite—they gave up more quickly and stared at humans instead of the box, seemingly asking for help.

When humans were not around, the findings were similar—nearly all of the wolves figured out how to open the box, while just one shelter dog and no pet dogs succeeded. In the third and final trial, dogs that had failed in both of the prior tests performed a bit better when humans encouraged them.

With some human cheerleading, four of nine shelter animals and one of eight pet dogs opened the box, and all spent more time trying to open the box and looking at the box than they did when they were either alone or when their human friends remained silent.

Udell’s results indicate that dogs do seem to be overly dependent on us compared to their wild relatives, although the cause of this—whether biological, environmental or both—still needs to be worked out.

Lucky for pet pooches, however, we humans will no doubt always be there to help them navigate all of life’s tricky plastic containers.

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Read more here.

Picking up on that last sentence, luckily for us humans our dogs will always be there to help us in innumerable ways, especially giving us unconditional love.

 

Of paradoxes, and headaches!

The interconnectedness of everything – even beyond our wildest imagination.

A while ago John Zande signed up to follow Learning from Dogs. Naturally, I went across to John’s blog to thank him. There I discovered that John is an animal lover and an author. For he states, referring to his book, that, “BUY IT. ALL PROCEEDS GO TO ANIMAL RESCUE AND SHELTER IN BRAZIL”. Fabulous!

John Zande cover_zpsz7wuq9cc

(I did buy the book, am about 20% through it and finding it very stimulating, – if you would like to buy it then click the image of the book on John’s home page.)

Anyway, a few days later we watched the BBC Horizon programme on multiple universes. Here’s how the BBC introduced the programme:

Which Universe Are We In?

Horizon, 2014-2015 Episode 17 of 19

Imagine a world where dinosaurs still walk the earth. A world where the Germans won World War II and you are president of the United States. Imagine a world where the laws of physics no longer apply and where infinite copies of you are playing out every storyline of your life.

It sounds like a plot stolen straight from Hollywood, but far from it. This is the multiverse.

Until very recently the whole idea of the multiverse was dismissed as a fantasy, but now this strangest of ideas is at the cutting edge of science.

And for a growing number of scientists, the multiverse is the only way we will ever truly make sense of the world we are in.

Horizon asks the question: Do multiple universes exist? And if so, which one are we actually in?

Horizon is always great to watch but this episode was incredibly stimulating and interesting. Later, in a exchange of comments to one of John’s posts, where I referred to that programme, John wrote:

The mulitverse is actually the more reasonable explanation for why there is something, and although I don’t understand the maths, the people who do say its simplistically beautiful. Matt Rave is an associate professor of physics and comments here regularly. He has a great book on it all, Why is There Anything?

rave

That lead me to purchasing Matthew Rave’s book that, likewise, is a most fascinating and unusual approach to this topic. His Amazon author’s page reveals that, “Dr. Matthew Rave is an assistant professor of physics at Western Carolina University, in the mountains of North Carolina. His research interests include interpretations of quantum mechanics, the geometric phase, solid state physics, and physics education.” Matthew Rave’s blogsite is here.

Matthew Rave’s book further illustrates the paradox, to my mind, that comes from thinking about why are we here, are we here and, if so, how do we know we are here?

So if that isn’t enough for you and me, then very recently The Conversation blogsite published the following from Geraint Lewis who is Professor of Astrophysics at the University of Sydney. It is republished here within the terms of The Conversation. Did I mention paradoxes and headaches!

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We are lucky to live in a universe made for us

Geraint Lewis, University of Sydney

To a human, the universe might seem like a very inhospitable place. In the vacuum of space, you would rapidly suffocate, while on the surface of a star you would be burnt to a crisp. As far as we know, all life is confined to a sliver of an atmosphere surrounding the rocky planet we inhabit.

But while the origin of life on Earth remains mysterious, there are bigger questions to answer. Namely: why do the laws of physics permit any life at all?

Hang on, the laws of physics? Surely they are a universal given and life just gets on with it?

But remember that the universe is built of fundamental pieces, particles and forces, which are the building blocks of everything we see around us. And we simply don’t know why these pieces have the properties they do.

There are many observational facts about our universe, such as electrons weighing almost nothing, while some of their quark cousins are thousands of times more massive. And gravity being incredibly weak compared to the immense forces that hold atomic nuclei together.

Why is our universe built this way? We just don’t know.

But what if…?

This means we can ask “what if” questions. What if the electron was massive and quarks were fleeting? What if electromagnetism was stronger than the nuclear strong force? If so, what would that universe be like?

Let’s consider carbon, an element forged in the hearts of massive stars, and an element essential to life as we know it.

Initial calculations of such stellar furnaces showed that they were apparently inefficient in making carbon. Then the British astronomer Fred Hoyle realised the carbon nucleus possesses a special property, a resonance, that enhanced the efficiency.

But if the strength of the strong nuclear force was only fractionally different, it would wipe out this property and leave the universe relatively devoid of carbon – and, thus, life.

The story doesn’t end there. Once carbon is made, it is ripe to be transmuted into heavier elements, particularly oxygen. It turns out that oxygen, due to the strength of the strong nuclear force, lacks the particular resonance properties that enhanced the efficiency of carbon creation.

This prevents all of the carbon being quickly consumed. The specific strength of the strong force has thus resulted in a universe with an almost equal mix of carbon and oxygen, a bonus for life on Earth.

Death of a universe

This is but a single example. We can play “what if” games with the properties of all of the fundamental bits of the universe. With each change we can ask, “What would the universe be like?”

The answers are quite stark. Straying just a little from the convivial conditions that we experience in our universe typically leads to a sterile cosmos.

This might be a bland universe, without the complexity required to store and process the information central to life. Or a universe that expands too quickly for matter to condense into stars, galaxies and planets. Or one that completely re-collapses again in a matter of moments after being born. Any complex life would be impossible!

The questions do not end there. In our universe, we live with the comfort of a certain mix of space and time, and a seemingly understandable mathematical framework that underpins science as we know it. Why is the universe so predictable and understandable? Would we be able to ask such a question if it wasn’t?

Our universe appears to balance on a knife-edge of stability. But why?

We appear to be very lucky to live in a universe that accommodates life. Zdenko Zivkovic/Flickr, CC BY

One of a multiverse

To some, science will simply fix it all. Perhaps, if we discover the “Theory of Everything”, uniting quantum mechanics with Einstein’s relativity, all of the relative masses and strengths of the fundamental pieces will be absolutely defined, with no mysteries remaining. To others, this is little more than wishful thinking.

Some seek solace in a creator, an omnipotent being that finely-tuned the properties of the universe to allow us to be here. But the move from the scientific into the supernatural leaves many uncomfortable.

There is, however, another possible solution, one guided by the murky and confused musings at the edge of science. Super-strings or M-theory (or whatever these will evolve into) suggest that the fundamental properties of the universe are not unique, but are somehow chosen by some cosmic roll of the dice when it was born.

This gives us a possible explanation of the seemingly special properties of the universe in which we live.

We are not the only universe, but just one in a semi-infinite sea of universes, each with their own peculiar set of physical properties, laws and particles, lifetimes and ultimately mathematical frameworks. As we have seen, the vast majority of these other universes in the overall multiverse are dead and sterile.

They only way we can exist to ask the question “why are we here?” is that we happen to find ourselves in a universe conducive to our very existence. In any other universe, we simply wouldn’t be around to wonder why we didn’t exist.

If the multiverse picture is correct, we have to accept that the fundamental properties of the universe were ultimately dished out in a game of cosmic roulette, a spin of the wheel that we appear to have won.

Thus we truly live in a fortunate universe.

The ConversationGeraint Lewis, Professor of Astrophysics, University of Sydney

This article was originally published on The Conversation. Read the original article.

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More on adopting dogs.

A smart partnership introduces hard-to-home dogs to high-energy humans.

Note to Readers

Last week I completed the final edit of my book of the same name as this blog, Learning from Dogs. I am learning the truth of what one experienced author said to this new author and that was that writing the book is the easy part! For the next stage is the professional editing of the manuscript. I was previously referred to Joni Wilson and I am so pleased that she is undertaking the task. Well, I think I am pleased! 😉 That last sentence comes from me utterly misjudging just how much work is being created for me as I start to go through hundreds, literally, of ‘recommendations’ from Joni. Dear readers, we are talking hours of revisions that I need, and want, to make.

All of which is my way of saying that if my posts over the next couple of weeks more strongly lean on the republishing of other material then you will understand why. In all cases I will endeavour to republish articles that are likely to interest you, of course!

So with those words in mind, here is another article from Mother Nature Network that stays with yesterday’s theme of adopting those dogs that are not necessarily the easiest to so do.

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Outdoorsy dogs find their perfect matches

A smart partnership introduces hard-to-home dogs to high-energy humans.

By: Jaymi Heimbuch, September 11, 2015

Anniston is on her way to her new home, thanks to a brilliant campaign to match high-energy dogs with high-energy humans. (Photo: Ruffwear)
Anniston is on her way to her new home, thanks to a brilliant campaign to match high-energy dogs with high-energy humans. (Photo: Ruffwear)

A couple weeks ago, Outdoor Retailer held an adoption event for shelter dogs. But it wasn’t just any event — this was specifically for high-energy, adventure-loving dogs seeking high-energy, adventure-loving humans. This matchup can be tough to find at a rescue or shelter, but what if the adoption event takes place where outdoorsy folks shop? Wouldn’t the potential for love at first wag be higher? It turns out that’s exactly what happens.

Ruffwear and Best Friends Animal Society created the Ruff Adventure Dog Adoption Program to place usually hard-to-home dogs — dogs that need a lot of exercise and outdoor activity and require a home with someone who wants a companion for trail runs, hiking, camping and other fun activities. They put the program to the test at Outdoor Retailer.

Among those who found a home are:

Jennifer finds Krone

Jennifer and Krone bond after meeting at an Outdoor Retailer event. (Photo: Ruffwear)
Jennifer and Krone bond after meeting at an Outdoor Retailer event. (Photo: Ruffwear)

Huck finds Gerald

It's a match made in outdoor-loving heaven for Huck the dog and Gerald, his new owner. (Photo: Ruffwear)
It’s a match made in outdoor-loving heaven for Huck the dog and Gerald, his new owner. (Photo: Ruffwear)

Niko finds his future parents

A future of happy tail-wagging adventure awaits for Niko, the black and white dog pictured at left. (Photo: Ruffwear)
A future of happy tail-wagging adventure awaits for Niko, the black and white dog pictured at left. (Photo: Ruffwear)

“Over the course of two days, Best Friends’ Salt Lake City partner, Rescue Rovers, brought in eight fresh air-seeking, adventure-ready dogs to the Salt Palace. [I]t wasn’t long before people stopped by the Ruffwear booth to hand in their adoption requests. Of the eight dogs who attended, six were adopted,” says the press release from Ruffwear.

“People expect us to have dogs at the booth, and they’re always a draw. But we had no idea how receptive show attendees would be to actually adopting these dogs. Rescue Rovers did a great job bringing dogs that would pair well with our active, outdoorsy crowd. I think the first application came in just hours after the dogs arrived and by the end of the first day, nearly all dogs present had applications pending; it was amazing,” said Greg Freyberg, Ruffwear’s Brand Manager.

The happy tale doesn’t end with this event. Ruffwear and Best Friends continue to match these trail-loving dogs with their perfect humans. Since the program launched in May, 13 dogs have been matched, with Ruffwear covering the cost of adoption fees as well as airfare to get the dogs to their new homes.

Check out this super feel-good video explaining the adoption partnership and the wonderful service it provides to high-energy dogs:

http://www.youtube.com/watch?v=B6wDe4gQCxE

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Once again, remember: Don’t Shop: Adopt!

Now where was I an hour ago???

“they” is plural, but in the previous sentence you have “dog” which is singular, so I changed this to be singular.

The word “over” usually has to do with physical properties—the cow jumped over the Moon, or standing over something.

Fast forward without a hyphen is a noun, while the hyphen makes it a verb

Ernest Hemingway apparently stated, “There is nothing to writing. All you do is sit down at a typewriter and bleed.”  Well, Mr. Hemingway is correct in that while the apparatus of typing has changed out of all recognition since his days, the bleeding has not!

 

Adopting senior dogs

Don’t shop: Adopt.

We have always adopted dogs on the basis of their need, never letting age come into it. In the years before I knew Jean she was rescuing dogs off the streets of Mexico, again without regard to breed, age, condition or temperament.

So this recent article on Mother Nature Network struck me as important. Please share it.

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Don’t be afraid to adopt an older dog, says photographer

An abandoned dog named Sunny made Lori Fusaro realize that ‘no dog should die alone’ and inspired her to start a photography project to benefit senior pets.

By: Laura Moss, July 22, 2013

Photo: Lori Fusaro
Photo: Lori Fusaro

 

The hardest part of loving a pet is having to say goodbye. That’s why the idea of adopting an older animal made dog lover Lori Fusaro so uneasy.

“I thought it would just be too sad and painful,” Fusaro told Today.com, “I didn’t think my heart could take it, so I wasn’t willing to open myself up.”

old2

But that all changed in June 2012 when Fusaro met Shady while she was photographing dogs at the South Los Angeles Animal Shelter. Shady was 16 years old with infected eyes and a large cancerous tumor on her leg.

“She was so sad and depressed. She wouldn’t even lift her head for a treat. I didn’t think I could adopt her and I left the shelter without her. But her face never left my mind. She kept popping into my thoughts.”

As she contemplated adoption, Fusaro sought out more information on the dog.

“I thought Shady was a stray that found her way into the shelter,” she wrote on her blog. “Turns out I was wrong. Living her entire life with a family and then dumped because she was too old. With this new information, her face haunts me even more.”

Fusaro couldn’t stand the idea of the gentle dog dying alone, so she took her home and changed her name to Sunny.

“I always come back to the idea that no dog should have to die alone. Even if she got just two months of joyous, happy life, it’s worth it for my heartbreak,” she said.
Watching Sunny transform from an anxious shelter dog into the happy family member she is today inspired Fusaro to start Silver Hearts, a photography project that showcases senior pets and the joy they bring to people’s lives.

“When I realized that there were probably hundreds of Sunnys languishing in shelters, I knew I had to do something about it. Silver Hearts became a way that I could use my photography to show these dogs as loving, happy souls that have a zest for living and deserve to spend their golden years in a loving home.”

Fusaro visited families across the United States to photograph their dogs and share their compelling stories. Many of the dogs were taken to shelters because they got sick or old or because the families could no longer afford to care for them.

Although older dogs are often calmer — and already house-trained — they’re typically the highest-risk animals in a shelter. Fusaro hopes her photographs can help change that.

She wants to turn her pictures into a book, with proceeds from sales going to three rescue organizations that help find homes for older dogs: Peace of Mind Dog Rescue in Grove, Calif., Willy’s Happy Endings in Woodlawn, Tenn., and Louie’s Legacy Animal Rescue in Ohio and New York.

She launched a Kickstarter campaign to try to raise money to self-publish the book, but failed to make the fundraising goal. Fusaro is now considering other methods of publication.

“When I look back at my unwillingness to adopt an older dog, it was more about my own selfishness — about not wanting to feel that pain, not wanting to make hard decisions,” Fusaro said. “But every dog is important. Every dog deserves a home. I finally just boiled it down to love. That’s the most important thing.”

Lori explains why she photographs senior dogs in the video below.

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Abandoned and homeless dogs so desperately need the love of caring owners.

Honouring our rescue dogs.

In this case, honouring one particular one.

As many know, yesterday was the fourteenth anniversary of when those two planes struck the towers of the World Trade Centre. Thus it seemed beautifully appropriate to recognise the life of the last living 9/11 rescue dog by republishing the article just published on Mother Nature News.

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Last living 9/11 rescue dog rewarded with epic day

Bretagne traveled to NYC to be honored for her weeks of service at Ground Zero.

By: Laura Moss, September 11, 2015.

At 16, Bretagne is a senior dog, but that hasn't slowed her down. She now volunteers at schools. (Photo: BarkPost)
At 16, Bretagne is a senior dog, but that hasn’t slowed her down. She now volunteers at schools. (Photo: BarkPost)

About 100 search-and-rescue dogs scoured the twisted steel beams and crumbled concrete of the World Trade Center in the aftermath of the 9/11 attacks, and today, Bretagne (pronounced “Brittany”) is the last known living 9/11 search-and-rescue dog. And she just had the best day ever.

To honor Bretagne for her service and celebrate her 16th birthday, BarkPost teamed up with the dog-friendly 1 Hotel Central Park to give the golden retriever a “Dog’s Best Day” that included a full day of treats and activities in New York City.

When Bretagne arrived in New York with her owner and handler Denise Corliss, she was greeted by a personalized billboard in Times Square.

Photo: BarkPost
Photo: BarkPost

Then she was off to play in the water at Hudson River Park, where she was presented with the doggie version of the Key to the City.

Former search-and-rescue teammates attended Bretagne’s sweet-16 party later that day, where she received a variety of toys and treats — and her very own birthday cake.

Photo: BarkPost
Photo: BarkPost

Corliss was also presented with a $1,000 donation for Texas Task Force 1, Bretagne’s search-and-rescue team, which is the most active one in the country.

In addition to her recovery work at Ground Zero, Bretagne and Corliss also worked in New Orleans following Hurricane Katrina, and today, the senior dog serves her community by volunteering at school programs that teach children to read.

Corliss adopted Bretagne as an 8-week-old puppy in 1999, and after undergoing rigorous training, the two joined Texas Task Force 1. Their first deployment was to Ground Zero, where a search for survivors quickly turned into a search for human remains.

Bretagne with a firefighter and her owner and handler, Denise Corliss during her "Dog's Best Day." (Photo: BarkPost)
Bretagne with a firefighter and her owner and handler, Denise Corliss during her “Dog’s Best Day.” (Photo: BarkPost)

For two weeks, the golden retriever tirelessly worked 12-hour shifts at the former site of the World Trade Center, and one day, Bretagne walked away from Corliss, ignoring commands to come back. The 2-year-old dog made her way to a firefighter sitting on the ground, laid next to him and put her head in his lap.

“When we deploy to some of the disasters, what I didn’t anticipate is the role that they take on as a therapy dog,” Corliss told BarkPost. “It provides an opportunity for people to have support from the dog and comfort from the dog in a real difficult environment.”

Watch Bretagne enjoy her best day in the video below.

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Don’t these wonderful, fabulous animals just make your heart ache!

Jean and I salute Bretagne and all the other Search & Rescue dogs both here in America and all around the world.

Animal survival.

The wonderful way that animals have evolved to survive life on the go.

It is very easy to look at our wonderful domesticated dogs and forget that genetically they are still very much hunting dogs. Of all the dogs that we have had Dhalia seemed the most closely connected with those instincts, and she is still missed more than a year after she died. So much so that I’m going to republish part of the post that commemorated her life just after she died. Here it is:

Dhalia, as with so many other dogs, offered lasting lessons.
April 8th, 2014

Inevitably, as Jean and I went around our ‘stuff’ yesterday after burying Dhalia in the morning, there were moments of quiet contemplation and gentle discussion.  Interludes over a hot drink where we reflected on the special dog that she was.

Much has already been written in this place but there can’t be too many reminders for us quirky humans of how valuable are the qualities of trust and love given to us by our dogs.

We need reminding how dogs are so intuitive and can reach out to a stranger without a moment of hesitation.  As Jean described when recalling how she first came across Dhalia.

Dhalia - domesticated but still the wild dog shows through.
Dhalia – domesticated but still the wild dog shows through.

It was a Sunday around the middle of the month of September in the year 2005. My friend, Gwen, and I had set off for La Manga, a small fishing village three miles from San Carlos, Mexico.  As the trip would take us through areas of desolate desert and the day was forecast to be a sizzler, we left early. The purpose of the journey was to feed a pack of dogs that were living on the outskirts of La Manga. These wild dogs were gradually getting used to our presence and with the aid of a humane trap we had previously caught two of them, a small puppy and her mother. Those two dogs were at my home and were gradually becoming tame so that good homes could be found for them.

Half-way to our destination, we saw two dogs running by the side of the road.   It wasn’t unusual to see strays searching for road-kill. I stopped the car and prepared food and water for them. One dog took off almost immediately but the other just stood perfectly still looking intently at me. She was rail-thin and full of mange.  Her ears and chest were scabbed with blood, and I could see that previously she had had pups. Tentatively, I pushed the food towards her. She took a bite and sat on her haunches; her eyes never leaving mine. Then she lifted a paw and reached out to me. Immediately, I burst into tears and scooped her into my arms.  I carried her back to the car where she lay quietly in my lap whilst we went on to do our feeding.  She was bloody and very smelly. However, I didn’t care.

Dhalia was always a gentle dog.  One that would mix with any of the other dogs. A dog that loved people, of all types and ages.

Love and Trust - Grandson Morten hugging Dhalia.
Love and Trust – Grandson Morten hugging Dhalia, September 2013.

You can read the full post here.

The reason that my post from last year came to mind was as a result of a recent article on The Conversation blogsite. It was called Motion dazzle: spotting the patterns that help animals outsmart predators on the run and seemed ideal to share with all you good people who support this place.

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Motion dazzle: spotting the patterns that help animals outsmart predators on the run

Laura Kelley, University of Cambridge

Zebra are seen running at the Serengeti National Park in Tanzania Nov. 14, 2013. (U.S. Navy photo by Mass Communication Specialist 1st Class Eric Dietrich/Released)
Zebra are seen running at the Serengeti National Park in Tanzania Nov. 14, 2013. (U.S. Navy photo by Mass Communication Specialist 1st Class Eric Dietrich/Released)

Many animals use the colours and patterns on their bodies to help them blend into the background and avoid the attention of predators. But this strategy, crypsis, is far from perfect. As soon as the animal moves, the camouflage is broken, and it is much easier for a predator to see and catch it. So how do animals protect themselves when they’re on the move?

Researchers are exploring whether high-contrast patterns during motion, such as stripes and zigzags, may be distorting the predator’s perception of where the animal is going. But, as little is known about such “motion dazzle”, we have built an online game to help shed light on it.

Lessons from war

The idea is that it may be more effective for animals to focus on preventing capture, rather then preventing detection or recognition, is actually more than 100 years old. It was naturalist Abbott Thayer who suggested that high-contrast patterns may distort the perceived speed or direction of a moving object, making it harder to track and capture.

Such motion dazzle patterns were actually used in World War I and II, where some ships were painted with black and white geometric patterns in an attempt to reduce the number of successful torpedo attacks from submarines. However, due to many other factors affecting wartime naval losses, it is unclear whether motion dazzle patterns actually had the desired effect.

HMS Argus displaying a coat of dazzle camouflage in 1918. wikimedia

What about the natural world? Zebras have bold stripes, and scientists have debated the function of their patterns since Darwin’s time. A recent modelling study suggested that when zebras move, their stripes create contradictory signals about their direction of movement that is likely to confuse predators. There are potentially two visual illusions responsible for this, which could form the basis of motion dazzle effects: the wagon wheel effect and the barber pole illusion.

The wagon wheel effect is named after Western movies, where the wheels on wagons often appear to be moving backwards. This is because the visual system takes “snapshots” over time and links them to create a continuous scene, in the same manner as recording film. If a wheel spoke moves forward rapidly between sampling events, it will appear to have moved backwards as it will be misidentified as the following spoke.

The barber pole illusion (also known as the aperture effect) occurs because the moving stripes provide ambiguous information about the true direction of movement. These illusory effects produced by stripes could therefore lead to difficulties in judging the speed and movement of a moving target. However, the zebra study was entirely theoretical and didn’t test whether striped patterns actually affected the judgements of real observers.

Dazzle Bug

Surprisingly, the first experimental tests of the effectiveness of motion dazzle patterns weren’t carried out until recently. Some studies have shown that strikingly patterned targets can be more difficult to catch than targets with other patterns in studies using humans as “predators” playing touch screen computer games. However, other studies have found no clear advantage for motion dazzle patterns So although patterns can affect our perception of movement, it’s still not clear which are most effective at doing so.

Can you see the spider? Crypsis can be pretty effective – as long as you don’t move. J Kelley, Author provided

We are addressing the question of which patterns are best for avoiding predators during movement using Dazzle Bug – an online game that asks players to imagine themselves as a predator, trying to catch a moving bug as fast as possible. Each bug has a different body pattern as well as a random pattern of movement. Bugs with easy to catch patterns will disappear, whereas those that are particularly tricky to catch will survive ––just like in nature. Over time, the patterns on the bugs’ body will evolve so that they become harder to catch with each successive generation.

This citizen science project will allow us to see what patterns are most effective at evading capture. We can then use these results to look at what visual effects these patterns have, and to see whether these patterns match up with those found on real animals in the wild.

Our findings will offer insight into the role of stripes, which are common in many species. While these patterns may have evolved to confuse the visual perception of a predator, they may also be a result of other selection pressures, such as attracting a mate or regulating body temperature. If striped patterns survive and evolve in the game, this would provide strong evidence that these patterns do act to confuse human predators, perhaps by producing the illusions described above. As motion perception seems to be highly conserved across a wide range of populations, these illusions may occur for many other predators too.

If we find that patterns other than stripes – such as speckles, splotches or zigzags – are most effective in preventing capture, this then leads to new and interesting questions about how these patterns may act to confuse or mislead. Whatever the outcome, Dazzle Bug will provide insight into how bodily patterns may have evolved to help animals to survive life on the go.

The ConversationLaura Kelley, Research Fellow, University of Cambridge

This article was originally published on The Conversation. Read the original article.

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 The natural world is so incredibly interesting.

With power comes responsibility.

“The price of greatness is responsibility.”

So said Sir Winston Churchill. It applies equally to the price of power.

There was an essay recently written and published by Hariod Brawn over on her blog Contentedness.net that was incredibly thought-provoking and very beautiful besides. Hariod has given me permission to republish it and it follows shortly.

I have no doubt that Hariod’s essay was, in part, inspired by that terrible photograph that has been circulated and commented upon by thousands around the world.

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In the words of the BBC, “The pictured boy is reported to be three-year-old Aylan, who drowned along with his five-year-old brother Galip and their mother, Rihan. Their father, Abdullah Kurdi, survived.”

The emotions created by this and other tragic photographs are disturbing, and I am no exception to having those same emotions. But as friend, Chris Snuggs, mentioned in a telephone call between us yesterday morning, what has been happening in Syria is no less terrible, perhaps even more so when one looks at the blood that is, metaphorically, on the hands of a number of western governments. The old saying of reaping what we sow comes to mind.

None of which takes away the intense beauty of Hariod’s essay: Empathetic apes.

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Empathic apes

Orangutan mother and kids. By Patrick Bouquet, Chantilly.
Orangutan mother and kids. By Patrick Bouquet, Chantilly.

The year is 1955, and far from the nearest village, somewhere within the Northwestern jungle region of Thailand, a 48 year-old Englishman and ordainee to the Buddhist monkhood sits quietly in studious attention. A few feet away, a female ape sits, arms carefully wrapped around some precious possession. The monk first chanced upon her the previous day, and due to the curiosity roused in observing her melancholic countenance, has remained respectfully nearby to her. A trust has developed, the ape sensing the monk’s gentle disposition and harmlessness. He really ought to be making his way to the village for alms, yet somehow senses that he should stay. A silent, palpable communication has developed between the two, and slowly, carefully and deliberately, the ape, her sadness still etched upon her face, finally unfolds her arms and offers a first sight of what she has been protecting. The monk slowly approaches to within a pace or two, sensing the invitation, only to catch sight of her lifeless and terribly deformed baby.

Two empathic apes, ancestrally and psychologically speaking, separated by little more in this moment than a distant, lineage-splitting, speciation event. Opposable thumbs, one hers and one his, in turn chase away a monk’s tear and a delicately mottled butterfly as it alights from the baby’s forehead, though cannot do the same for their conjoined feelings. Eyes meet, evincing as they do a deepening rush of sadness. Nothing can be done – is this what she is thinking in her way? In his unknowing, the saffron-robed wanderer radiates compassion, yet knows he has nothing to do with it; an offering from wisdom, not from the self. All that need be known arrives in the fullest of measures. What use now the venerable elder’s sagacity, his knowledge of emptiness, renunciation, equanimity, the void? She inhabits the void, is the void, her bleak knowing piercing its veils. Without turning, the monk slowly retreats, still reverently holding her gaze alongside a shared understanding. A slight suggestion of a bowing head betokens what passes between them.

It is the ability to empathise which in part distinguishes the psychopathic mind from its otherwise healthy state, and the primary orbit of empathy is that of feeling, not the mere gyrations of intellect. This is why many species of sentience can empathise, and we human animals are but one of them. We may erroneously presume that an ability to reflect upon others’ situations facilitates human empathic capacity; yet the state of those others and their situations need not be known as verbally abstracted objects in the mind – little stories packaged in words. We may just as well occupy others’ frames of reference by intuited means; and vitality, morbidity, distress and joy may all be recognised across species in differing ways; one need not indulge any anthropomorphisation, for clear evidence abounds. What is intuited here, or instinctively known, is the nature of the other’s felt emotional condition; and in this way, 60 years ago, the grieving mother ape and mendicant monk shared that intense experience – a wordless world of deep, primate feeling.

Engraving of Orangutan. By Willem Piso (1611-1678). Courtesy Wellcome Trust

Was the mother ape empathic? Well, she came to appreciate the monk’s amity; she felt able to extend trust; she intuited the monk’s concern for her as well as his desire for understanding as to the reasons for, and significance of, her sadness; and finally, she recognised that the monk would feel something of that sadness in revealing its causes to him. This is all to say that she significantly placed herself within the monk’s frame of reference and innately understood that emotions can be matched in shared experience – the personal does not expire at the boundary of the body. Her empathic appreciation was sophisticated, certainly moreso than any psychopathic human ape. Now, one way to cheat the system is to mimic expressions and gestures, which results in a like proprioceptive sense. This means our feelings echo the other’s, so affecting an emotional contagion of sorts, whether volitionally induced or not. Yet neither jungle dweller did so, their empathic link being forged in mind purely intuitively, and silently.

Empathy subsists in knowledge; it is in part to know the mind of the other, and whilst its currency is both cognitive (knowing) and emotional (feeling) in nature, it is the latter that strengthens the connective link to altruistic and prosocial leanings, as well as ameliorating aggressive traits. Primates’ mirror-neuron systems help forge innate empathic leanings, with research suggesting that empathy evolved in part as a survival mechanism. Right now, tens of thousands of refugees are fleeing war-torn regions of Africa and the Middle East so as to seek sanctuary, and survival, in Europe. A few hours ago, a three year-old Syrian boy, Aylan Kurdi, drowned and was washed up on the shores of the Greek island of Kos. Equally tragically, his five year-old brother met a similar fate. Whilst Europe’s politicians exhibit an ongoing empathy gap, innocent children are dying. We live, not literally, though metaphorically, in a jungle, sharing the empathic faculties of the monk and bereaved mother ape. Are we wise enough to nurture the same?

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We need leaders who understand the integrity that is required from them. We need leaders that accept and understand the responsibilities that they have embraced, indivisible from the power that society has lent to them. We need leaders that understand a different aspect of their power, the power of those unanticipated consequences from their actions.

Until we the people understand that electing leaders who do not embrace integrity then Aylan Kurdi and thousands of others in those ‘hot spots’ around the world will continue dying in vain.

Integrity equates to being truthful, to being honest. It doesn’t mean being right all the time, of course not, but integrity does mean accepting responsibility for all our actions, for feeling remorse and apologising when we make mistakes. Integrity means learning, being reliable, being a builder rather than a destroyer. It means being authentic. That authenticity is precisely and exactly what we see in our dogs.

The starting point for what we must learn from our dogs is integrity.

Seeing the truth in our mirror.

A sombre reflection on the killing abilities of man.

I was in two minds as to whether to post this today for it is certainly a grim reminder of the less desirable aspects of our species.

In the end, I decided to so do because it needs to be shared and if it changes the mindset of just one person it will have been worthwhile. I was originally seen by me on the EarthSky blogsite.

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Want to see Earth’s super predator? Look in the mirror.

Our efficient killing technologies have given rise to the human super predator. Our impacts are as extreme as our behavior, says study.

Rope trawl for midwater trawling. Photo credit: NOAA
Rope trawl for midwater trawling. Photo credit: NOAA

Extreme human predatory behavior is responsible for widespread wildlife extinctions, shrinking fish sizes and disruptions to global food chains, according to research published in the August 21 edition of the journal Science these are extreme outcomes that non-human predators seldom impose, according to the article.

Lead researcher Chris Darimont is a professor of geography at the University of Victoria. Darimont said:

Our wickedly efficient killing technology, global economic systems and resource management that prioritize short-term benefits to humanity have given rise to the human super predator. Our impacts are as extreme as our behavior and the planet bears the burden of our predatory dominance.

A coastal wolf is hunting salmon in British Columbia, Canada. Photo credit: Guillaume Mazille
A coastal wolf is hunting salmon in British Columbia, Canada. Photo credit: Guillaume Mazille

The team’s global analysis indicates that humans typically exploit adult fish populations at 14 times the rate than do marine predators. Humans also hunt and kill large land carnivores such as bears, wolves and lions at nine times the rate that these predatory animals kill each other in the wild.

Researchers noted that in some cases, dwindling species of predatory land carnivores are more aggressively hunted for trophies, due to the premium placed on rare prey.

The result of human activity on wildlife populations is far greater than natural predation. Research suggests that socio-political factors can explain why humans repeatedly overexploit. Technology explains how: Humans use advanced killing tools, cheap fossil fuel, and professional harvesters – like high-volume commercial fishing fleets – to overcome the defensive adaptations of prey.

Humanity also departs fundamentally from predation in nature by targeting adult quarry.Co-author Tom Reimchen is a biology professor at University of Victoria. He said:

Whereas predators primarily target the juveniles or ‘reproductive interest’ of populations, humans draw down the ‘reproductive capital’ by exploiting adult prey.

During four decades of fieldwork on Haida Gwaii, an archipelago on the northern coast of British Columbia, Reimchen looked at how human predators differ from other predators in nature. Reimchen’s predator-prey research revealed that predatory fish and diving birds overwhelmingly killed juvenile forms of freshwater fish. Collectively, 22 predator species took no more than five per cent of the adult fish each year. Nearby, Reimchen observed a stark contrast: fisheries exclusively targeted adult salmon, taking 50 per cent or more of the runs.

The authors conclude with an urgent call to reconsider the concept of “sustainable exploitation” in wildlife and fisheries management. A truly sustainable model, they argue, would mean cultivating cultural, economic and institutional change that places limits on human activities to more closely follow the behavior of natural predators. Darimont said:

We should be protecting our wildlife and marine assets as an investor would in a stock portfolio.

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Bottom line: According to research published in the August 21, 2015 edition of Science, extreme human predatory behavior is responsible for widespread wildlife extinctions, shrinking fish sizes and disruptions to global food chains.

Read more from the University of Victoria

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Chris Darimont really put his finger on the spot in my opinion when he was quoted,”We should be protecting our wildlife and marine assets as an investor would in a stock portfolio.”

Going to close today’s post by repeating what is presented on the Welcome page of Learning from Dogs, namely:

As man’s companion, protector and helper, history suggests that dogs were critically important in man achieving success as a hunter-gatherer. Dogs ‘teaching’ man to be so successful a hunter enabled evolution, some 20,000 years later, to farming, thence the long journey to modern man. But in the last, say 100 years, that farming spirit has become corrupted to the point where we see the planet’s plant and mineral resources as infinite. Mankind is close to the edge of extinction, literally and spiritually.

Dogs know better, much better! Time again for man to learn from dogs!

My argument rests!

I’ll lead, you follow Mr Goose.

Stories like this are wonderful – more please!

This needs no further introduction from me other than to say that this gorgeous story is from Mother Nature Network.

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‘Lost’ goose follows pickup truck 6 miles to water

After a Canada goose started following his truck, forester Andre Bachman decided to lead it to a nearby lake — and to film a video out his window as the bird flew dutifully alongside.

By: Russell McLendon
August 20, 2015

If there’s a wild Canada goose following you, it often means you’re being chased angrily from a pond or harassed for bread crumbs. But as a new viral video illustrates, the famously surly birds can be surprisingly civil — even compliant.

Andre Bachman first realized a goose was tailing him as he drove along a gravel road in rural southwest Alberta. “The goose was flying above when it saw his truck and started flying beside him,” writes Reddit user Watchboy0, who posted a video of the encounter titled “A Canada Goose was following my dad in his truck.”

Curious why a goose would spontaneously follow a pickup truck, Bachman pulled over — as did the goose. He began filming with his smartphone as he stepped out to greet the goose, which was waddling nonchalantly toward him.

“Hi,” Bachman said. “What are you doing? Are you lost?”

The goose didn’t answer, aside from quiet honking. But its behavior spoke volumes, revealing a level of comfort with humans that suggests it may have been a pet at some point. Shooing it with “off you go, off you go” didn’t work, so Bachman decided to embrace the goose’s idea. Thinking it might need help finding water, he set out for Shining Bank Lake, which the CBC reports is about 10 kilometers (6 miles) away.

“Let’s go for a flight, OK?” he offered. As Bachman filmed through his truck window, he began driving and coaching the goose to follow. It started with a brisk trot — a pretty amusing sight on its own — and then flapped into flight, letting Bachman capture an endearing view of it flying alongside to the Beatles’ “Let It Be.”

A Canada goose flies alongside a pickup truck on its way to Alberta's Shining Bank Lake. (Photo: Andre Bachman/YouTube)
A Canada goose flies alongside a pickup truck on its way to Alberta’s Shining Bank Lake. (Photo: Andre Bachman/YouTube)

Bachman stopped at least once to check on the goose, saying “I almost hit you, didn’t I?” and noting its tameness when the bird let him pet it. As goose expert Sid Andrews of Inglewood Bird Sanctuary tells Canada’s Global News, even wild Canada geese accustomed to handouts rarely tolerate that.

“I would guess that because it allowed the fellow driving the truck to get very close, that at some point in time, it must have been imprinted on human beings,” Andrews says, adding that it also may have simply mistaken its reflection in the truck’s bumper for another goose. “It somehow got lost or estranged from the group and found, just by happenstance, another goose in the reflection in the bumper.”

Either way, the goose had little trouble keeping up. “My dad would just about stop for the corners after the first one to let it turn,” Watchboy0 writes on Reddit. “Also, at one point he wanted to see how fast it could go. At around 80 km/h [50 mph], the goose started flying above his truck on the air coming off his windshield.”

Once at the lake, the goose “seems happy and stays,” Bachman writes on YouTube, where the video has been watched more than 1.5 million times in about a week. The bird was probably never in serious distress, Andrews says, but Bachman may still have done it a favor by leading it to water. “I certainly would applaud [the driver’s] instincts to head to water because it’ll have a much better chance of finding food.”

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Well done that man: forester Andre Bachman. Well done, indeed!

Wild Dogs and Englishmen …

… go out in the mid-day sun!

Say the word ‘dog’ to me and my immediate thought would be of the domesticated animal, as I’m sure would be the first thought of thousands of others.

But our wonderful doggie companions came from the wild and in some countries wild dogs still are widely found. There was an article on the Mokolodi Nature Reserve blogsite in November, 2009 specifically about wild dogs, that included the following picture:

Wild hunting dogs drinking.
Wild hunting dogs drinking.

All of which is a wonderful reminder that wilderness is a critical and essential element in the overall health of our planet, and by extension, of ourselves.

The academic blogsite The Conversation yesterday published an article by William Lynn who is a Research Scientist in Ethics and Public Policy at Clark University. It proposes a wonderful way of keeping our populations of wild animals healthy and vibrant through rewilding.  It is republished here within the terms of The Conversation.

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Setting aside half the Earth for ‘rewilding’: the ethical dimension

August 26, 2015 5.50am EDT

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Wildlife corridors: four proposals to ‘rewild’ portions of North America. Smithsonian Institute, CC BY-NC

A much-anticipated book in conservation and natural science circles is EO Wilson’s Half-Earth: Our Planet’s Fight for Life, which is due early next year. It builds on his proposal to set aside half the Earth for the preservation of biodiversity.

The famous biologist and naturalist would do this by establishing huge biodiversity parks to protect, restore and connect habitats at a continental scale. Local people would be integrated into these parks as environmental educators, managers and rangers – a model drawn from existing large-scale conservation projects such as Area de Conservación Guanacaste (ACG) in northwestern Costa Rica.

The backdrop for this discussion is that we are in the sixth great extinction event in earth’s history. More species are being lost today than at any time since the end of the dinosaurs. There is no mystery as to why this is happening: it is a direct result of human depredations, habitat destruction, overpopulation, resource depletion, urban sprawl and climate change.

Wilson is one of the world’s premier natural scientists – an expert on ants, the father of island biogeography, apostle of the notion that humans share a bond with other species (biophilia) and a herald about the danger posed by extinction. On these and other matters he is also an eloquent writer, having written numerous books on biodiversity, science, and society. So when Wilson started to talk about half-Earth several years ago, people started to listen.

As a scholar of ethics and public policy with an interest in animals and the environment, I have been following the discussion of half-Earth for some time. I like the idea and think it is feasible. Yet it suffers from a major blind spot: a human-centric view on the value of life. Wilson’s entry into this debate, and his seeming evolution on matters of ethics, is an invitation to explore how people ought to live with each other, other animals and the natural world, particularly if vast tracts are set aside for wildlife.

The ethics of Wilson’s volte-face

I heard Wilson speak for the first time in Washington, DC in the early 2000s. At that talk, Wilson was resigned to the inevitable loss of much of the world’s biodiversity. So he advocated a global biodiversity survey that would sample and store the world’s biotic heritage. In this way, we might still benefit from biodiversity’s genetic information in terms of biomedical research, and perhaps, someday, revive an extinct species or two.

Not a bad idea in and of itself. Still, it was a drearily fatalistic speech, and one entirely devoid of any sense of moral responsibility to the world of nonhuman animals and nature.

What is striking about Wilson’s argument for half-Earth is not the apparent about-face from cataloging biodiversity to restoring it. It is the moral dimension he attaches to it. In several interviews, he references the need for humanity to develop an ethic that cares about planetary life, and does not place the wants and needs of a single species (Homo sapiens sapiens) above the well-being of all other species.

people to consider the role of humans in nature. jene/flickr, CC BY-NC-ND
The half-earth proposal prompts people to consider the role of humans in nature. jene/flickr, CC BY-NC-ND

To my ear, this sounds great, but I am not exactly sure how far it goes. In the past, Wilson’s discussions of conservation ethics appear to me clearly anthropocentric. They espouse the notion that we are exceptional creatures at the apex of evolution, the sole species that has intrinsic value in and of ourselves, and thus we are to be privileged above all other species.

In this view, we care about nature and biodiversity only because we care about ourselves. Nature is useful for us in the sense of resources and ecological services, but it has no value in and of itself. In ethics talk, people have intrinsic value while nature’s only value is what it can do for people – extrinsic value.

For example, in his 1993 book The Biophilia Hypothesis, Wilson argues for “the necessity of a robust and richly textured anthropocentric ethics apart from the issues of rights [for other animals or ecosystems] – one based on the hereditary needs of our own species. In addition to the well-documented utilitarian potential of wild species, the diversity of life has immense aesthetic and spiritual value.”

The passage indicates Wilson’s long-held view that biodiversity is important because of what it does for humanity, including the resources, beauty and spirituality people find in nature. It sidesteps questions of whether animals and the rest of nature have intrinsic value apart from human use.

His evolving position, as reflected in the half-Earth proposal, seems much more in tune with what ethicist call non-anthropocentrism – that humanity is simply one marvelous but no more special outcome of evolution; that other beings, species and/or ecosystems also have intrinsic value; and that there is no reason to automatically privilege us over the rest of life.

Consider this recent statement by Wilson:

What kind of a species are we that we treat the rest of life so cheaply? There are those who think that’s the destiny of Earth: we arrived, we’re humanizing the Earth, and it will be the destiny of Earth for us to wipe humans out and most of the rest of biodiversity. But I think the great majority of thoughtful people consider that a morally wrong position to take, and a very dangerous one.

The non-anthropocentric view does not deny that biodiversity and nature provide material, aesthetic and spiritual “resources.” Rather, it holds there is something more – that the community of life has value independent of the resources it provides humanity. Non-anthropocentric ethics requires, therefore, a more caring approach to people’s impact on the planet. Whether Wilson is really leaving anthropocentrism behind, time will tell. But for my part, I at least welcome his opening up possibilities to discuss less prejudicial views of animals and the rest of nature.

The 50% solution

It is interesting to note that half-Earth is not a new idea. In North America, the half-Earth concept first arose in the 1990s as a discussion about wilderness in the deep ecology movement. Various nonprofits that arose out of that movement continued to develop the idea, in particular the Wildlands Network, the Rewilding Institute and the Wild Foundation.

These organizations use a mix of conservation science, education and public policy initiatives to promote protecting and restoring continental-scale habitats and corridors, all with an eye to preserving the native flora and fauna of North America. One example is ongoing work to connect the Yellowstone to Yukon ecosystems along the spine of the Rocky Mountains.

Take it up a notch? The British Columbia Ministry of Transportation recently started to add signs warning motorists when they are likely to encounter wildlife. British Columbia Ministry of Transportation, CC BY-NC-ND
Take it up a notch? The British Columbia Ministry of Transportation recently started to add signs warning motorists when they are likely to encounter wildlife. British Columbia Ministry of Transportation, CC BY-NC-ND

When I was a graduate student, the term half-Earth had not yet been used, but the idea was in the air. My classmates and I referred to it as the “50% solution.” We chose this term because of the work of Reed Noss and Allen Cooperrider’s 1994 book, Savings Nature’s Legacy. Amongst other things, the book documents that, depending on the species and ecosystems in question, approximately 30% to 70% of the original habitats of the Earth would be necessary to sustain our planet’s biodiversity. So splitting the difference, we discussed the 50% solution to describe this need.

This leads directly into my third point. The engagement of Wilson and others with the idea of half-Earth and rewilding presupposes but does not fully articulate the need for an urban vision, one where cities are ecological, sustainable and resilient. Indeed, Wilson has yet to spell out what we do with the people and infrastructure that are not devoted to maintaining and teaching about his proposed biodiversity parks. This is not a criticism, but an urgent question for ongoing and creative thinking.

Humans are urbanizing like never before. Today, the majority of people live in cities, and by the end of the 21st century, over 90% of people will live in a metropolitan area. If we are to meet the compelling needs of human beings, we have to remake cities into sustainable and resilient “humanitats” that produce a good life.

Such a good life is not to be measured in simple gross domestic product or consumption, but rather in well-being – freedom, true equality, housing, health, education, recreation, meaningful work, community, sustainable energy, urban farming, green infrastructure, open space in the form of parks and refuges, contact with companion and wild animals, and a culture that values and respects the natural world.

To do all this in the context of saving half the Earth for its own sake is a tall order. Yet it is a challenge that we are up to if we have the will and ethical vision to value and coexist in a more-than-human world.

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I am sure many will agree that this is a very interesting idea and one that I hope is eventually adopted. For the sake of all our wild animals, including our dogs.