A very interesting article in Scientific American magazine!
A single page article in this month’s Scientific American magazine is fascinating. The sub-heading is: “An amicable disposition also governed the course of evolution for an animal that turned into a favorite pet.”
A little later on in the article one reads:
When our research group began its work almost 20 years ago, we discovered that dogs also have extraordinary intelligence: they can read our gestures better that any other species, even bonobos and chimpanzees. Wolves, in contrast, are mysterious and unpredictable. Their home is the wilderness, and that wilderness is shrinking.
The article was written by Prof. Brian Hare and Vanessa Woods and is part of a much longer piece on Homo sapiens.
In fact tomorrow I shall republish a post I wrote in 2015 about the origins of the dog!
The Moon is an astronomical body orbitingEarth and is the planet’s only natural satellite. It is the fifth-largest satellite in the Solar System, and by far[13] the largest among planetary satellites relative to the size of the planet that it orbits (its primary). The Moon is, after Jupiter‘s satellite Io, the second-densest satellite in the Solar System among those whose densities are known.
The Moon is thought to have formed about 4.51 billion years ago, not long after Earth. The most widely accepted explanation is that the Moon formed from the debris left over after a giant impact between Earth and a hypothetical Mars-sized body called Theia. New research of Moon rocks, although not rejecting the Theia hypothesis, suggests that the Moon may be older than previously thought.[14]
The Moon is in synchronous rotation with Earth, and thus always shows the same side to Earth, the near side. Because of libration, slightly more than half (about 59%) of the total lunar surface can be viewed from Earth.[15] The near side is marked by dark volcanic maria that fill the spaces between the bright ancient crustal highlands and the prominent impact craters. After the Sun, the Moon is the second-brightest celestial object regularly visible in Earth’s sky. Its surface is actually dark, although compared to the night sky it appears very bright, with a reflectance just slightly higher than that of worn asphalt. Its gravitational influence produces the ocean tides, body tides, and the slight lengthening of the day.
The Moon’s average orbital distance is 384,402 km (238,856 mi),[16][17] or 1.28 light-seconds. This is about thirty times the diameter of Earth. The Moon’s apparent size in the sky is almost the same as that of the Sun, since the star is about 400 times the lunar distance and diameter. Therefore, the Moon covers the Sun nearly precisely during a total solar eclipse. This matching of apparent visual size will not continue in the far future because the Moon’s distance from Earth is gradually increasing.
Venus is the second planet from the Sun. It is named after the Roman goddess of love and beauty. As the second-brightest natural object in the night sky after the Moon, Venus can cast shadows and can be, on rare occasion, visible to the naked eye in broad daylight.[15][16] Venus lies within Earth’s orbit, and so never appears to venture far from the Sun, either setting in the west just after dusk or rising in the east a bit before dawn. Venus orbits the Sun every 224.7 Earth days.[17] With a rotation period of 243 Earth days, it takes longer to rotate about its axis than any other planet in the Solar System and does so in the opposite direction to all but Uranus (meaning the Sun rises in the west and sets in the east).[18] Venus does not have any moons, a distinction it shares only with Mercury among planets in the Solar System.[19]
Venus is a terrestrial planet and is sometimes called Earth’s “sister planet” because of their similar size, mass, proximity to the Sun, and bulk composition. It is radically different from Earth in other respects. It has the densest atmosphere of the four terrestrial planets, consisting of more than 96% carbon dioxide. The atmospheric pressure at the planet’s surface is 92 times that of Earth, or roughly the pressure found 900 m (3,000 ft) underwater on Earth. Venus is by far the hottest planet in the Solar System, with a mean surface temperature of 737 K (464 °C; 867 °F), even though Mercury is closer to the Sun. Venus is shrouded by an opaque layer of highly reflective clouds of sulfuric acid, preventing its surface from being seen from space in visible light. It may have had water oceans in the past,[20][21] but these would have vaporized as the temperature rose due to a runaway greenhouse effect.[22] The water has probably photodissociated, and the free hydrogen has been swept into interplanetary space by the solar wind because of the lack of a planetary magnetic field.[23] Venus’s surface is a dry desertscape interspersed with slab-like rocks and is periodically resurfaced by volcanism.
As one of the brightest objects in the sky, Venus has been a major fixture in human culture for as long as records have existed. It has been made sacred to gods of many cultures, and has been a prime inspiration for writers and poets as the morning star and evening star. Venus was the first planet to have its motions plotted across the sky, as early as the second millennium BC.[24]
I included these excerpts from WikiPedia because many will find them of interest and quite a few, including yours truly, actually learnt something!
There was a recent post on The Conversation that was published for the kids among us. But I thought it would have an appeal far wider than just for our children, and it is republished here.
ooOOoo
Do dogs really see in just black and white?
By Nancy Dreschel
Associate Teaching Professor of Small Animal Science, Pennsylvania State University.
Do dogs really see in just black and white? – Oscar V., age 9, Somerville, Massachusetts
While most people see a full spectrum of colors from red to violet, dogs lack some of the light receptors in their eyes that allow human beings to see certain colors, particularly in the red and green range. But canines can still see yellow and blue.
Different wavelengths of light register as different colors in an animal’s visual system. Top is the human view; bottom is a dog’s eye view.
What you see as red or orange, to a dog may just be another shade of tan. To my dog, Sparky, a bright orange ball lying in the green grass may look like a tan ball in another shade of tan grass. But his bright blue ball will look similar to both of us. An online image processing tool lets you see for yourself what a particular picture looks like to your pet.
Animals can’t use spoken language to describe what they see, but researchers easily trained dogs to touch a lit-up color disc with their nose to get a treat. Then they trained the dogs to touch a disc that was a different color than some others. When the well-trained dogs couldn’t figure out which disc to press, the scientists knew that they couldn’t see the differences in color. These experiments showed that dogs could see only yellow and blue.
Light travels to the back of the eyeball, where it registers with rod and cone cells that send visual signals on to the brain.
Not only can dogs see fewer colors than we do, they probably don’t see as clearly as we do either. Tests show that both the structure and function of the dog eye leads them to see things at a distance as more blurry. While we think of perfect vision in humans as being 20/20, typical vision in dogs is probably closer to 20/75. This means that what a person with normal vision could see from 75 feet away, a dog would need to be just 20 feet away to see as clearly. Since dogs don’t read the newspaper, their visual acuity probably doesn’t interfere with their way of life.
There’s likely a lot of difference in visual ability between breeds. Over the years, breeders have selected sight-hunting dogs like greyhounds to have better vision than dogs like bulldogs.
But that’s not the end of the story. While people have a tough time seeing clearly in dim light, scientists believe dogs can probably see as well at dusk or dawn as they can in the bright middle of the day. This is because compared to humans’, dog retinas have a higher percentage and type of another kind of visual receptor. Called rod cells because of their shape, they function better in low light than cone cells do.
Dogs also have a reflective tissue layer at the back of their eyes that helps them see in less light. This mirror-like tapetum lucidum collects and concentrates the available light to help them see when it’s dark. The tapetum lucidum is what gives dogs and other mammals that glowing eye reflection when caught in your headlights at night or when you try to take a flash photo.
Dogs share their type of vision with many other animals, including catsand foxes. Scientists think it’s important for these hunters to be able to detect the motion of their nocturnal prey, and that’s why their vision evolved in this way. As many mammals developed the ability to forage and hunt in twilight or dark conditions, they gave up the ability to see the variety of colors that most birds, reptiles and primates have. People didn’t evolve to be active all night, so we kept the color vision and better visual acuity.
Even though Sparky might not be able to easily see that orange toy in the grass, he can certainly smell it and find it easily when he wants to.
ooOOoo
Trust me, the dog’s nose is “much more powerful”. Upwards of fifty million times more so, as I wrote about here.
Plus, living with so many dogs as we do, there are instances when all the dogs start barking, frequently when they are all in our bedroom getting ready for the night. Jean and I cannot hear a thing but the dogs can, and Jean and I don’t have a clue!
They are incredible creatures and humans are so lucky to have them around us.
This, again, is not about our beloved animals; in other words, this is not about our dogs.
But it is about something of supreme importance: The role of innovation. That’s innovation in all aspects of our human lives. Think of it as a process of innovation.
There was the Diffusion of Innovation (DOI) Theory developed by E.M. Rogers in 1962. There is a comprehensive explanation of DOI here, from where I take the following diagram, but before explaining, from that same site, the meanings behind the definitions, I would like to emphasize one important point: “It works better with adoption of behaviors rather than cessation or prevention of behaviors.“.
So here is that diagram:
Here are the meanings of those terms (my emboldening):
Adoption of a new idea, behavior, or product (i.e., “innovation”) does not happen simultaneously in a social system; rather it is a process whereby some people are more apt to adopt the innovation than others.
Researchers have found that people who adopt an innovation early have different characteristics than people who adopt an innovation later. When promoting an innovation to a target population, it is important to understand the characteristics of the target population that will help or hinder adoption of the innovation.
There are five established adopter categories, and while the majority of the general population tends to fall in the middle categories, it is still necessary to understand the characteristics of the target population. When promoting an innovation, there are different strategies used to appeal to the different adopter categories.
Innovators – These are people who want to be the first to try the innovation. They are venturesome and interested in new ideas. These people are very willing to take risks, and are often the first to develop new ideas. Very little, if anything, needs to be done to appeal to this population.
Early Adopters – These are people who represent opinion leaders. They enjoy leadership roles, and embrace change opportunities. They are already aware of the need to change and so are very comfortable adopting new ideas. Strategies to appeal to this population include how-to manuals and information sheets on implementation. They do not need information to convince them to change.
Early Majority – These people are rarely leaders, but they do adopt new ideas before the average person. That said, they typically need to see evidence that the innovation works before they are willing to adopt it. Strategies to appeal to this population include success stories and evidence of the innovation’s effectiveness.
Late Majority – These people are skeptical of change, and will only adopt an innovation after it has been tried by the majority. Strategies to appeal to this population include information on how many other people have tried the innovation and have adopted it successfully.
Laggards – These people are bound by tradition and very conservative. They are very skeptical of change and are the hardest group to bring on board. Strategies to appeal to this population include statistics, fear appeals, and pressure from people in the other adopter groups.
Now there’s a TED Talk that I hadn’t seen, and yet nearly 51 million people had! It came to me as an email from TED and yesterday, while we were sitting up in bed early in the morning, I watched it. It ‘spoke’ to me and I felt that I just had to share it with you.
Because so many of the problems that face our society today are global issues and if humans are to have a future on this planet then we need great leaders who will inspire us.
Now watch the following video, it’s just over 18 minutes long, but it says it all.
This is another story from The Dodo blogsite. And, yes, about a dog. But not any old dog; he used his sense of smell to protect us humans. He has, in my opinion, an unusual name but it is still his name: TTirado. TTirado was an explosive detection dog at Indianapolis Airport and after eight years of service he was retired.
Here’s the full story!
ooOOoo
TSA Detection Dog Gets A Huge Surprise Before He Retires
As an explosive detection canine, TTirado isn’t always allowed to play with tennis balls like normal pets. Tennis balls — his favorite toy — are used as a reward for a job well done at the Indianapolis Airport.
So when it came time for TTirado to retire after eight long years of service, his handler came up with the perfect way to celebrate — with a massive ball drop.
Keith Gray
“It’s a coveted item during their career,” Keith Gray, TTirado’s handler, told The Dodo. “They know that they have to work for it to get it and that’s what keeps them going and keeps their motivation up.”
Keith Gray
TTirado is top of the class when it comes to detection, and has passed every single evaluation and test. For TTirado, scent detection is a game, and he’s always been happy to go into work with his dad.
“He was the first dog that was assigned to me and the dog I kept my entire career,” Gray said. “He’s a black Lab, so he’s a fantastic, lovable pup. He’s been such a great dog to work with and I’ve learned so much from him over the years.”
Keith Gray
To surprise the pup on his special day, Gray ordered 200 tennis balls online and set up a special final search for him.
“We had a couple of handlers that were behind the scenes ready to drop the balls when he showed up,” Gray said. “The handlers knew what to do when the dog alerts, which is basically him coming around the corner, sniffing that bag like he’s supposed to and dropping his butt to sit down.”
Keith Gray
When TTirado signaled to his dad that he had found something, all 200 tennis balls dropped from the sky. TTirado was in heaven.
TTirado loves to play fetch, and everyone joined in throwing balls for the senior dog to chase.
After putting in countless 40-hour workweeks, TTirado is finally learning to enjoy his retirement. While TTirado was always part of the family, Gray has officially adopted him and plans on taking the pup on lots of fun trips in the future.
But perhaps the biggest change for TTirado is that he gets to hang out on the couch with his favorite toy every single day: “Now that he’s retired, he can have all the toys and tennis balls he wants and play around with them at home,” Gray said.
ooOOoo
It’s a wonderful story about a great dog. TTirado, you have a fantastic retirement and may you live happily for a long time to come!
A new sense recently discovered in the dog’s nose.
I subscribe to AAAS and their last email newsletter contained this fascinating information.
ooOOoo
An infrared photo of a golden retriever in a functional magnetic resonance imaging scanner reveals the cold temperature of a dog’s nose versus its glowing, warm body. Anna Bálint
New sense discovered in dog noses: the ability to detect heat
Dogs’ noses just got a bit more amazing. Not only are they up to 100 million times more sensitive than ours, they can sense weak thermal radiation—the body heat of mammalian prey, a new study reveals. The find helps explain how canines with impaired sight, hearing, or smell can still hunt successfully.
“It’s a fascinating discovery,” says Marc Bekoff, an ethologist, expert on canine sniffing, and professor emeritus at the University of Colorado, Boulder, who was not involved in the study. “[It] provides yet another window into the sensory worlds of dogs’ highly evolved cold noses.”
The ability to sense weak, radiating heat is known in only a handful of animals: black fire beetles, certain snakes, and one species of mammal, the common vampire bat, all of which use it to hunt prey.
Most mammals have naked, smooth skin on the tips of their noses around the nostrils, an area called the rhinarium. But dogs’ rhinaria are moist, colder than the ambient temperature, and richly endowed with nerves—all of which suggests an ability to detect not just smell, but heat.
To test the idea, researchers at Lund University and Eötvös Loránd University trained three pet dogs to choose between a warm (31°C) and an ambient-temperature object, each placed 1.6 meters away. The dogs weren’t able to see or smell the difference between these objects. (Scientists could only detect the difference by touching the surfaces.) After training, the dogs were tested on their skill in double-blind experiments; all three successfully detected the objects emitting weak thermal radiation, the scientists reveal today in Scientific Reports.
Next, the researchers scanned the brains of 13 pet dogs of various breeds in a functional magnetic resonance imaging scanner while presenting the pooches with objects emitting neutral or weak thermal radiation. The left somatosensory cortex in dogs’ brains, which delivers inputs from the nose, was more responsive to the warm thermal stimulus than to the neutral one. The scientists identified a cluster of 14 voxels (3D pixels) in this region of the dogs’ left hemispheres, but didn’t find any such clusters in the right, and none in any part of the dogs’ brains in response to the neutral stimulus.
Together, the two experiments show that dogs, like vampire bats, can sense weak hot spots and that a specific region of their brains is activated by this infrared radiation, the scientists say. They suspect dogs inherited the ability from their ancestor, the gray wolf, who may use it to sniff out warm bodies during a hunt.
“The study is consistent with other research that describes the combined dog nose and brain as a sophisticated platform for processing a broad range of signals,” says Gary Settles, an emeritus professor of mechanical engineering at Pennsylvania State University, University Park, who has studied dogs’ sniffing abilities. He doubts, however, “that the dog rhinarium can distinguish patterns of hot and cold objects at a distance,” suggesting dogs’ thermal detection skills may not be useful for long distance hunting. “[T]hat needs further study.”
If nothing else, the work suggests the extraordinary skills of the sled dog Buck, who tracked prey “not by sight or sound or smell, but by some other and subtler sense” in Jack London’s Call of the Wild, aren’t completely fictional after all.
ooOOoo
Dogs are in the news again. For their incredible noses; this time we are learning how they track heat.
I can’t remember how long ago it was that I came across Alexandra Horowitz but the name stuck. For Alexandra is an author of many titles although many of them are about dogs.
But here’s a quote from someone who reviewed her book, On Looking: A Walker’s Guide to the Art of Observation.
“Horowitz writes like a poet, thinks like a scientist, and ventures like an explorer. Her book will have you looking in a new way at the world around you, and make you glad you did.” – Susan Orlean, author of Rin Tin Tin
If you haven’t already read some of her books then don’t delay!
Now I want to introduce a different side of Alexandra. That of her being a broadcaster, for want of a better description.
This is not a short video, it is 49 minutes long. But that’s a reason to sit down and thoroughly immerse oneself in her talk.
It is introduced thus:
To a dog, there is no such thing as “fresh air.” Every breath is full of information—in fact, what every dog knows about the world comes mostly through their nose. Dogs, when trained, can identify drugs of every type, underwater cadavers, cancer, illicit cell phones in prison, bed bugs, smuggled shark fins, dry rot, land-mines, termites, invasive knapweed, underground truffles, and dairy cows in estrous. But they also know about the upcoming weather, earthquakes before they happen, how “afternoon” smells, what you had for breakfast, and whether a cat touched your leg yesterday. And of course, they sniff their way home and know the distinctive odor of each spot of sidewalk as you travel there.
Alexandra Horowitz is a research scientist in the field of dog cognition and the New York Times bestselling author of “Inside of a Dog”. Her new book “BEING A DOG: Following the Dog into a World of Smell” explores in even greater depth what dogs know, delving into all of these remarkable abilities and revealing a whole world of experiences we miss every day. Alexandra visited Google Seattle to share her research and open eyes (and noses!) of pet parents everywhere.
The point at which the sun reaches its farthest point north of the equator is the Summer Solstice, well it is for the Northern Hemisphere. This occurs annually on June 20 or June 21, depending on your time zone.
Here in Southern Oregon, the moment of the Summer Solstice will be at 2:43 PM or 14:43 PDT on Saturday, i.e. today! For the United Kingdom it will be at 22:43 BST on the same day or 21:43 GMT/UTC.
A quick web ‘look-up’ finds that the word solstice is from the Latin solstitium, from sol (sun) and stitium (to stop), reflecting the fact that the Sun appears to stop at this time, albeit momentarily.
At the ancient stone circle of Stonehenge in Southern England, the prehistoric monument that took Neolithic builders an estimated 1,500 years to erect, for many years the Druids have celebrated the Solstice and, undoubtedly, will be doing so again.
AMESBURY, UNITED KINGDOM – JUNE 21: A man stands on top of Stonehenge as the sun rises over Salisbury Plain on June 21, 2006 in Amesbury, England. Police estimated around 17,000 people travelled to watch the sun rise over the 5,000 year old stone circle to start the longest day of the year. (Photo by Daniel Berehulak/Getty Images)
There’s a good article over at EarthSky on this year’s Solstice. I would like to quote a little from it:
At the June solstice, Earth is positioned in its orbit so that our world’s North Pole is leaning most toward the sun. As seen from Earth, the sun is directly overhead at noon 23 1/2 degrees north of the equator, at an imaginary line encircling the globe known as the Tropic of Cancer – named after the constellation Cancer the Crab. This is as far north as the sun ever gets.
All locations north of the equator have days longer than 12 hours at the June solstice. Meanwhile, all locations south of the equator have days shorter than 12 hours.
and
Where should I look to see signs of the solstice in nature? Everywhere. For all of Earth’s creatures, nothing is so fundamental as the length of the day. After all, the sun is the ultimate source of almost all light and warmth on Earth’s surface.
If you live in the Northern Hemisphere, you might notice the early dawns and late sunsets, and the high arc of the sun across the sky each day. You might see how high the sun appears in the sky at local noon. And be sure to look at your noontime shadow. Around the time of the solstice, it’s your shortest noontime shadow of the year.
If you’re a person who’s tuned in to the out-of-doors, you know the peaceful, comforting feeling that accompanies these signs and signals of the year’s longest day.
Is the solstice the first day of summer? No world body has designated an official day to start each new season, and different schools of thought or traditions define the seasons in different ways.
In meteorology, for example, summer begins on June 1. And every schoolchild knows that summer starts when the last school bell of the year rings.
Yet June 21 is perhaps the most widely recognized day upon which summer begins in the Northern Hemisphere and upon which winter begins on the southern half of Earth’s globe. There’s nothing official about it, but it’s such a long-held tradition that we all recognize it to be so.
It has been universal among humans to treasure this time of warmth and light.
For us in the modern world, the solstice is a time to recall the reverence and understanding that early people had for the sky. Some 5,000 years ago, people placed huge stones in a circle on a broad plain in what’s now England and aligned them with the June solstice sunrise.
We may never comprehend the full significance of Stonehenge. But we do know that knowledge of this sort wasn’t limited to just one part of the world. Around the same time Stonehenge was being constructed in England, two great pyramids and then the Sphinx were built on Egyptian sands. If you stood at the Sphinx on the summer solstice and gazed toward the two pyramids, you’d see the sun set exactly between them.
How does it end up hotter later in the summer, if June has the longest day? People often ask:
If the June solstice brings the longest day, why do we experience the hottest weather in late July and August?
This effect is called the lag of the seasons. It’s the same reason it’s hotter in mid-afternoon than at noontime. Earth just takes a while to warm up after a long winter. Even in June, ice and snow still blanket the ground in some places. The sun has to melt the ice – and warm the oceans – and then we feel the most sweltering summer heat.
Ice and snow have been melting since spring began. Meltwater and rainwater have been percolating down through snow on tops of glaciers.
But the runoff from glaciers isn’t as great now as it’ll be in another month, even though sunlight is striking the northern hemisphere most directly around now.
So wait another month for the hottest weather. It’ll come when the days are already beginning to shorten again, as Earth continues to move in orbit around the sun, bringing us closer to another winter.
And so the cycle continues.
Indeed, so the cycle continues as it has for time immemorial!
Yesterday, (it was actually the 22nd February, 2014!) I published a post and called it Dogs and wolves – fascinating research. Then blow me down in yesterday’s online BBC News, there was an article headlined: Dogs’ brain scans reveal vocal responses This is how it opened.
Dogs’ brain scans reveal vocal responses
By Rebecca Morelle, Science reporter, BBC World Service
Pet dogs took part in the MRI scanning study.
Devoted dog owners often claim that their pets understand them. A new study suggests they could be right.
By placing dogs in an MRI scanner, researchers from Hungary found that the canine brain reacts to voices in the same way that the human brain does.
Emotionally charged sounds, such as crying or laughter, also prompted similar responses, perhaps explaining why dogs are attuned to human emotions.
Lead author Attila Andics, from the Hungarian Academy of Science’s Eotvos Lorand University in Budapest, said: “We think dogs and humans have a very similar mechanism to process emotional information.”
Eleven pet dogs took part in the study; training them took some time.
During the approximately 18–32 thousand years of domestication [1], dogs and humans have shared a similar social environment [2]. Dog and human vocalizations are thus familiar and relevant to both species [3], although they belong to evolutionarily distant taxa, as their lineages split approximately 90–100 million years ago [4]. In this first comparative neuroimaging study of a nonprimate and a primate species, we made use of this special combination of shared environment and evolutionary distance. We presented dogs and humans with the same set of vocal and nonvocal stimuli to search for functionally analogous voice-sensitive cortical regions. We demonstrate that voice areas exist in dogs and that they show a similar pattern to anterior temporal voice areas in humans. Our findings also reveal that sensitivity to vocal emotional valence cues engages similarly located nonprimary auditory regions in dogs and humans. Although parallel evolution cannot be excluded, our findings suggest that voice areas may have a more ancient evolutionary origin than previously known.
The canine brain reacted to voices in the same way that the human brain does.
“There were 12 sessions of preparatory training, then seven sessions in the scanner room, then these dogs were able to lie motionless for as long as eight minutes. Once they were trained, they were so happy, I wouldn’t have believed it if I didn’t see it.”
For comparison, the team looked at the brains of 22 human volunteers in the same MRI scanners.
The scientists played the people and pooches 200 different sounds, ranging from environmental noises, such as car sounds and whistles, to human sounds (but not words) and dog vocalisations.
The researchers found that a similar region – the temporal pole, which is the most anterior part of the temporal lobe – was activated when both the animals and people heard human voices.
“We do know there are voice areas in humans, areas that respond more strongly to human sounds that any other types of sounds,” Dr Andics explained.
“The location (of the activity) in the dog brain is very similar to where we found it in the human brain. The fact that we found these areas exist at all in the dog brain at all is a surprise – it is the first time we have seen this in a non-primate.”
Emotional sounds, such as crying and laughter also had a similar pattern of activity, with an area near the primary auditory cortex lighting up in dogs and humans.
Likewise, emotionally charged dog vocalisations – such as whimpering or angry barking – also caused a similar reaction in all volunteers,
Dr Andics said: “We know very well that dogs are very good at tuning into the feelings of their owners, and we know a good dog owner can detect emotional changes in his dog – but we now begin to understand why this can be.”
However, while the dogs responded to the human voice, their reactions were far stronger when it came to canine sounds.
They also seemed less able to distinguish between environmental sounds and vocal noises compared with humans.
About half of the whole auditory cortex lit up in dogs when listening to these noises, compared with 3% of the same area in humans.
Commenting on the research, Prof Sophie Scott, from the Institute of Cognitive Neuroscience at University College London, said: “Finding something like this in a primate brain isn’t too surprising – but it is quite something to demonstrate it in dogs.
“Dogs are a very interesting animal to look at – we have selected for a lot of traits in dogs that have made them very amenable to humans. Some studies have show they understand a lot of words and they understand intentionality – pointing.”
But she added: “It would be interesting to see the animal’s response to words rather than just sounds. When we cry and laugh, they are much more like animal calls and this might be causing this response.
For the full report, as it was posted on the BBC website, click here.
Plus, do watch this five-minute video abstract.
Published on Feb 20, 2014
The video presents the first study to compare brain function between humans and any non-primate animal. Scientists at MTA-ELTE Comparative Ethology Research Group in Hungary found that dogs and humans use similar neural mechanisms to process social information in voices. The fact that dogs can be trained to lie motionless during fMRI tests opens up the space for a new branch of comparative neuroscience.
The first study to compare brain function between humans and any non-primate animal shows that dogs have dedicated voice areas in their brains just as people do. Dog brains, like those of people, are also sensitive to acoustic cues of emotion, according to a study in the Cell Press journal Current Biology.
The findings suggest that voice areas evolved at least 100 million years ago, the age of the last common ancestor of humans and dogs, the researchers say. It also offers new insight into humans’ unique connection with our best friends in the animal kingdom, perhaps explaining how our two species have lived and worked together so effectively for tens of thousands of years.
“Our findings suggest that dogs and humans not only share a similar social environment, but they also use similar brain mechanisms to process social information,” said Atilla Andics of MTA-ELTE Comparative Ethology Research Group in Hungary. “This may help the successfulness of vocal communication between the two species.”
Andics and his colleagues trained eleven dogs to lay motionless in an fMRI brain scanner. That made it possible to run the very same neuroimaging experiment on dog and human participants — something that had never been done before. They captured both dogs’ and humans’ brain activities while they listened to dog and human sounds, ranging from whining or crying to playful barking or laughing.
The images show that dog and human brains include voice areas in similar locations. Not surprisingly, the voice area of dogs responds more strongly to other dogs, while that of humans responds more strongly to other humans. The researchers also noted striking similarities in the ways the dog and human brain processes emotionally loaded sounds. In both species, an area near the primary auditory cortex lit up more with happy sounds than unhappy ones. Andics said they were most struck by the common response to emotion across species.
There were some differences too: in dogs, 48 percent of all sound-sensitive brain regions respond more strongly to sounds other than voices. That’s in contrast to humans, in which only three percent of sound-sensitive brain regions show greater response to non-vocal versus vocal sounds.
The study is the first step to understanding how it is that dogs can be so remarkably good at tuning into the feelings of their human owners. “This method offers a totally new way of looking at neural processing in dogs,” Andics said. “At last we begin to understand how our best friend is looking at us and navigating in our social environment.”
Although this is the second time this has been shown it is so remarkable, and there may well be many who have not seen it!
On June 4th this year Grist published an article written by Eve Andrews. It is not about dogs at all. Yet, it seems to me to ask a fundamental question about us humans. The article speaks of America but certainly it applies to my old country, the U.K., and it probably applies to most of the countries in the world.
I recently wrote to Annelise McGough, the Growth and Engagement Editor at Grist asking if I could republish the article. She kindly said yes!
Did any aspect of climate change cause the pandemic to happen this year (versus last year or next year)? Could pandemics happen more often?
— Which Oracle Read Rightly Imminent, Existential Doom?
A. Dear WORRIED,
2020: what a year so far! As anyone who witnessed the crowds of face mask-clad people show up in the middle of a deadly pandemic to protest police violence this weekend can attest, a lot seems to be terrible all at once. You’re asking, in a sense, why now? It almost seems like it must be a rhetorical question. But it’s not — by understanding how we got into this mess, we might presumably be able to find our way out.
This doesn’t just apply to the pandemic.
Let’s start by taking your question at face (mask) value: There are multiple factors that have contributed to the rise of zoonotic illnesses — those of animal origin — over recent years, as my very sharp colleague Shannon Osaka delineated in an article and video earlier in the spring. Scientists believe COVID-19, like several other SARS viruses, likely originated in a bat. It turns out many strains of coronavirus can be traced back to bats! Who knew those little guys were such harbingers of destruction?
It’s not really on the bats, of course. Warmer temperatures (an established feature of climate change) and environmental degradation (often attributed to climate change, industrialization, or other products of human development) have driven a lot of animals to migrate out of their normal habitats and into human ones. Those factors have also contributed to different species coming into close contact with each other, which makes viruses normally contained to one species more likely to “spill over,” or jump to a new type of animal.
So clearly, the lead-up to the novel coronavirus’s outbreak was a gradual one. But perhaps 2019 was just warm enough to kill off enough of the insect population that some COVID-19-carrying bat depended on for food, and that drove it out to wreak some (unintentional) havoc on humanity. The bat’s habitat could have been destroyed by a new coal mine development. It could have woken up one morning and thought: This is my time to fuck shit up! Revenge on those humans that messed up my home! (OK, there was also probably a pangolin involved, but let’s keep things simple.)
According to the Centers for Disease Control and Prevention, COVID-19 is the fourth major pandemic caused by a novel virus to hit the United States since the 1918 “Spanish flu” that killed 50 million people worldwide. And there are so many factors and variables that lead to the sprout of a pandemic that you could very well argue that, “Yes, of course it happened at this exact point in time” or “No, it could have happened at any point in time.” It’s impossible to know for sure. But climate change and habitat destruction are certainly working together to create circumstances more favorable to the spread of disease, and that means pandemics will likely become more common as the world grows warmer.
The thing is, highly contagious, devastating illnesses have always been a part of human life, even though a real pandemic is a few-times-per-century event. It’s a fact of sharing the Earth with other living things; it just happens. But humans are ostensibly equipped with the means to contain the spread of diseases and help heal those who become sick. At this moment, thanks to advances in medicine and information-sharing and communication, that’s more true than ever before!
And yet. The United States, an astonishingly wealthy nation with ostensibly the most advanced — certainly the most expensive! — medical system in the world, has lost around 100,000 people to COVID-19, with many more surely to come. That doesn’t even take into account the far-reaching hardship caused by an economic collapse as drastic, by some metrics, as the Great Depression. The current unemployment rate, for example, exceeds 20 percent.
The reality is that what some have referred to as “the lost spring” (and what could very well be “the lost year”) is not the product of a single infectious disease, but the boiling over of many long-standing crises, including structural forms of injustice. Like everything else in American society, the damage done by the coronavirus is unevenly distributed across race. The death rate of black Americans from COVID is three times that of whites, and 40 percent of black-owned businesses have shuttered due to social distancing measures. As of April, rates of black and Latino unemployment were 16.7 and 18.9 percent, respectively, compared to 14.2 percent for whites. These hardships continue to feed into the cycle of racial inequality in this country.
The devastation to American society that we are witnessing in real time, one could argue, could only have happened at the present moment. That’s due to the nightmarish confluence of horrific leadership, centuries of racial oppression, unprecedented wealth inequality, the erosion of the social safety net, privatization of medicine, a far-too-consolidated supply chain, politicization of science, a highly globalized economy, and one misguided or mischievous bat. Oh, and the climate change and environmental degradation that could have led to said bat’s misbehavior.
COVID-19 could have popped up at any time, as viruses do. The degree to which it’s ravaged American society, however, has little to do with the virus itself. Other countries such as New Zealand and South Korea, faced the same disease and came out the other side with far fewer deaths and less severe economic devastation. This is, to a significant degree, about governance and leadership.
It’s also a preview of what climate change can do. A very contagious respiratory virus is an unfortunate fact; it’s not going away, and it is a challenge to be dealt with. Climate change, just the same, is coming whether or not we pay attention to it. Communities, cities, and states are going to have to put measures into place to ensure that it doesn’t literally kill us all. That’s what adaptation means, and that’s why people talk about things like seawalls and tree cover and managed retreat.
But creating a climate-resilient society requires a lot more than just building or planting stuff! This is where I would normally tell you to vote for leaders who support all that building and planting and, more importantly, cutting carbon emissions in the first place. Yes, do that. And additionally, vote for leaders who will feed our starving public systems to make it so they actually support the people who need them. Vote for those who understand and want to change what non-white people experience, what poor people experience, what immigrants experience. Without all of these things, there cannot be a climate-resilient civilization.
If anything were made clear by the unique, mind-boggling suffering that the United States has seen in the past week, brought about by the collision of a viral pandemic and police brutality, it’s that voting is a necessary condition but it is not enough. You, WORRIED, wrote to me to ask why the pandemic happened right now, possibly because it seems like such a uniquely terrible moment for the country to have to deal with it. We not only have the worst possible leader, but also a general absence of leadership altogether.
Going back just a few months, I believe there was an opportunity for an alternate version of this moment in American history in which one incredibly dangerous virus did not kill as many people nor ruin as many lives. But even in that universe, it’s important to acknowledge that pre-pandemic life wasn’t so great for most people. Undoing this path and “restoring order” is a ridiculous hope, since the order that has existed for so long has created a society that is wholly unsustainable judging from almost any social, environmental, or economic perspective.
So what can we do with this knowledge? One, you should be angry. Be angry that leaders missed opportunities to fortify the nation beyond its military, to break down racist systems and promote equality, and to instate laws and policies designed to help prevent crises that, by all accounts, were utterly predictable.
Then I think you should show your anger, whether that’s through protesting, hurling money or your time or whatever you have at worthy organizations that will put it in the right hands, or just screaming and yelling, if you have to. And while voting might not feel like enough when so much feels so wrong, it’s a necessary condition for change — force people in power to know that they created that mess and that they are accountable for it.
Furiously,
Umbra
ooOOoo
Climate change or global warming is with us NOW. It is time to make fundamental changes to the way we live NOW. While many individuals are doing their bit we need international agreement, especially international support for the United Nations, for all the nations in the world NOW.
Thank you for reading this!
It breaks my heart.
Let me not stop with that. I want to hear from you. Are you worried? Or not quite as concerned as me and Umbra? Do you think it is in the hands of our leaders or is it an international problem?
Nancy Dreschel
Learning from Dogs 