Yesterday’s post was the concluding part of Professor Bekoff’s essay about the world of the dog’s mind. (Part One is here.)
I do hope you all read the essay because it revealed just how complex and wonderful is the brain of man’s oldest friend.
A couple of week’s ago, the UK Daily Mail newspaper published an item with the heading of: What’s your dog trying to tell YOU? Scientists discover animals’ bark can reveal whether it is scared or lonely…and can even be used to tell its gender and age.
This is how the article opened:
Ever wondered what your dog’s trying to tell you with its bark? Well, now there is a computer program able to do just that – and you’d be surprised at just what your pet is able to communicate.
Scientists developed the program after discovering dogs aren’t just trying to attract attention, or scaring off intruders when they bark.
Amazingly, the bark could also let you know the gender and age of your pet – as well as whether it is scared, happy or even lonely.
The Daily Mail quoted a very similar article that appeared in The Independent newspaper on the 29th May. The Independent article included this:
A dog bark may sound like one loud, irritating racket but scientists have discovered that they actually give away information about the animal.
Researchers have developed a computer program which can determine the sex and age of a dog through its bark – a development they say has the potential to help vets diagnose pets.
Scientists analysed 800 barks recorded from eight dogs in seven different situations and developed complex algorithms that were able to predict the gender, age and context of the barker.
The researchers said “canine communication” has been heavily studied over the past decade. However, most of the research has focused on studying how dogs understand human communication, such as hand gestures and voice recognition. This is the first time that the sex and age of domestic dogs have been predicted with the help of sound analysis, they said.
Of the two articles, the one in The Independent seems easiest on the eye so I recommend you read it in full if the subject piques your interest. However, The Daily Mail did include the following video:
I’m not going to repeat my full introduction to Professor Bekoff’s essay from yesterday other than to repeat this:
Thus with Marc Bekoff’s generous permission, here is his essay in full. (I’ve taken the decision to split this long essay into two parts.)
Finally, Professor Bekoff includes numerous ‘html’ links within his essay to other materials. I’ve cheated by saving quite some time adding those links but have underlined the linked phrase in question, apart from the very early chapters that do have ‘html’ links. Please go to the site of the original essay to explore further those links.
Marc Bekoff and friend.
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Butts and Noses: Secrets and Lessons from Dog Parks (Concluding Part)
Dog parks are gold mines of information about the behavior of dogs and humans
Are dogs really our best friends and are we really their best friends?
I’m asked these questions a lot and I always say it’s simply not so that dogs are “unconditional lovers.” They discriminate among humans just like we discriminate among dogs. And, while dogs might love “too much,” they’re very careful about to whom they open up. So, sometimes — perhaps very often — dogs are our best friends and we are their best friends but we all know of picky dogs and the horrific abuse to which dogs are subjected.
Are dogs really free at a dog park?
I often hear something like, “Oh I love coming to the dog park because my dog is so free” – and then she’s/he’s called back constantly when he plays too roughly or strays too far. People surely differ in how much control they exert, but some just don’t give their dog the opportunity to play, sniff, and hump. Control freaks often abound and they don’t realize it. Patrick Jackson, in the essay to which I referred above, writes about how “caretakers become ‘control managers’ who must negotiate problems related to a variety of dog behaviors, especially mounting, aggression, and waste management.” He’s right on the mark, but there are also those who get upset when play gets a bit rough, even when the dogs obviously are enjoying themselves.
Do dogs display dominance?
Yes, they do, just like many other animals. There is major confusion and mistakes among many “dog people” about what dominance really means, and dogs, like numerous other animals, do indeed use various forms of dominance in their social interactions. However, this does not mean that dominance is equated with overt aggression and physical harm nor that we need to dominate them in order to live in harmony with them (for more on this topic and the fact that dominance is not a myth please see this essay and and and references therein).
Why do dogs mount and hump?
Here are some of the statements I hear about dog mounting and humping: “Oh my God, my dog was fixed to stop this stuff.” “Oh, that’s easy, it’s always to dominate the other dog.” “Domination.” “Dogs are hyper-sexual because of domestication.” There are many reasons why dogs hump and there’s not a single answer (please see this essay and references therein).
Do Dogs feel shame and guilt?
While I hear numerous stories about shame and guilt, the simple and most correct answer is that we really don’t know. While we’re not all that good at reading guilt this does not mean that they do not feel guilt (please see this essay and references therein).
Do dogs get jealous?
Yes they do and a study published in 2014 showed this to be the case (please see this essay and references therein). I often hear very compelling stories about jealousy in dogs.
Do dogs get bored?
Yes, of course they do, just as do many other mammals, especially those living in various conditions of captivity. It’s clear that researchers and zoo administrators, for example, recognize that animals get bored, hence the numerous enrichment programs that are designed to relieve the animals’ boredom. The detailed research of Francois Wemelsfelder is a wonderful place to begin to learn about boredom in animals (see also the essays listed here).
Do dogs suffer from PTSD and other psychological disorders?
Yes they do as do many other animals.
Do dogs mind being used as service dogs or in animal assisted therapy?
Because dogs are such a variable lot, it’s impossible to say something like, “Of course they do.” The correct answer is that because dogs vary in personality and temperament there are some who would mind it and some who won’t. I’ve met many in each camp and I’m sure many readers have as well.
Are there Attention Deficit Dogs (ADD’s)?
I often hear people say that their dogs don’t hear them or that they ignore them most of the time. While there are many reasons why this might be so, it’s entirely possible that there are dogs who get so excited they simply don’t respond to their human’s requests. But, it’s also possible that some dogs do suffer from attention deficit disorder and hyperactivity.
How often does social play escalate into serious aggressive encounters?
We all know that play behavior predominates at dog parks and that dogs have fun when they play (see also) and that play is very contagious. Dogs play socially with one another, often involving objects, and they also play alone with objects or just go berserk on their own because it feels good. Dogs can play very roughly and still be in control and there are distinct “rules of social play” that help to keep even a vigorous interaction well within bounds so that there’s really little or no worry that play will escalate into aggression. Nonetheless, I hear this statement a lot: “Oh whenever dogs play it turns into aggression.” It doesn’t. My own observations suggest that it seems escalation happens more in large groups in which dogs can’t read one another’s subtle signals that “this still is play,” but it is very rare. Dogs can be rather fair. I want to say a bit more on this topic because it seems to be major reason why dogs are called back to their human or that humans break up rough-and-tumble play.
Although my students and I haven’t kept detailed records on this aspect of play for dogs, we all agree that play didn’t turn into serious fighting in more than around 2% of the 1000s of play bouts we’ve observed. Current observations at dog parks around Boulder, Colorado support our conclusion. And, for the approximately 1000 play bouts that my students and I observed in wild coyotes, mainly youngsters, on only about five occasions did we see play fighting escalate into serious fighting. Along these lines, Shyan, Fortune, and King (2003) discovered that fewer than 0.5% of play fights in dogs developed into conflict, and only half of these were clearly aggressive encounters. In this case our intuitions were right on the mark. Of course, there may be dogs who simply bite too hard or slam too hard into their play partners when they get highly aroused and lost in play, and this results in an aggressive encounter of varying intensity. But that is the exception rather than the rule, for play fighting only very rarely escalates into real fighting. Because play is a foundation of fairness there is a good deal of cooperation among the players as they negotiate the ongoing interaction so that it remains playful. I think one can make a good case for their having a theory of mind. Nonetheless, we still need more data on this aspect of play as well.
Do older dogs play less than younger dogs?
While this is true of wild animals who have to work harder to survive and to thrive, older dogs play a lot when they can and we really need more data on this question.
Do dogs have a theory of mind?
We don’t know. While some studies suggest they don’t, we need more “naturalistic” research especially when dogs are socially interacting. Because play is a foundation of fairness and there is a good deal of cooperation among the players as they negotiate the ongoing interaction so that it remains playful. Perhaps dogs even know what their playmates are thinking and feeling. Do they have a theory of mind? While I think so, we still need more data on this aspect of play as well.
Why do dogs roll and writhe on their back?
It could be to impart an odor. A wild canid known as the raccoon dog who lives in South America has a scent gland on its back. Dogs might also roll on their back to mask their own odor. And, of course, it might feel really good so why not do it? I love watching dogs writhe on their back and they look like they’re in doggie heaven.
Do dogs have a sense of time? The “two minute warning”
We really don’t know much at all about the dog’s sense of time. Yet, people often use what I call the “two minute warning” and ask their dog if it’s okay if they leave in 2 minutes, or people tell their dog something like, “You have 5 minutes more to play with your friends before we go to the store.” They also ask their dog, “What the hell took you so long, I’ve been calling you for minutes?” or “Where were you when I called you?” I can well imagine the dog thinking something like, “Huh?”
Why do dogs snort?
While there are physical reasons why dogs snort, recent research shows that dogs sort odors in their nose, forcing out those that aren’t relevant or salient, hence the snort and often a good deal of snot (for more on the fascinating dog’s nose please see this essay and this.
Why do dogs try to pee and nothing comes out?
This is called “dry marking” and we know that lifting a leg as if the dog is peeing serves as a visual signal to tell others he is. Often a dog will “dry mark” and then pee a few seconds later, so it’s clear their bladder isn’t empty. A study I did years ago with some students showed that dogs do this more often when there are other dogs around who can see them and then pee a bucket.
Why do dogs scratch the ground after they pee or poop?
They do this for a number of possible reasons and there isn’t a simple answer to this question.
Poop central: Why do people talk so much about dog poop at dog parks?
People also talk about poop a lot as if they’re freer to do so with their dog. Matthew Gilbert notes, “poop was more of a thing at the park than I had expected.” (p. 66) He also talks about a “stray bowel movement” as a “voluminous and frozen still life” (p, 67). Dog poop is a ripe area for future research.
Why do dogs stick their noses into butts, groins, and ears?
It’s a way of greeting and social investigation, but there haven’t been any studies of which I’m aware that provide any details about why they do this, even to their dog friends or humans. It’s been suggested that some animals might pick up information on the food others have eaten.
Are there breed specific odors?
Many people report that on their first encounter with other dogs, members of the same breed prefer one another and treat breed members differently from individuals of different breeds. There’s been some discussion that there may be a common odor to members of the same breed. However, my reading of available information is that we really know little about this question right now.
Do dogs know what they look like?
While dogs know what they smell like, they don’t know what they look like, or might they? Research done on birds in the 1960s suggests that they might learn their own color from reflections in water. So, I suppose dogs might know what they look like if they’ve seen their own reflection, but we need much more research about this question.
Why do dogs circle before lying down?
Dogs do not always circle before lying down, as some authors claim. They likely do it to flatten or soften the ground, and may also be looking around to see who’s around before they relax. In a study some of my students did years ago they reported that the dogs they watched circled around 65% of the time, but more detailed studies are needed.
Why does the hair on a dog’s back stand up?
This is called piloerection (sort of like goose bumps) and indicates that a dog is highly aroused but not necessarily aggressive. Many other species, including birds, show the same (sympathetic nervous system) response.
Dogs and humans: Why do people open up at dog parks?
Dogs can easily serve as icebreakers and social catalysts. People often open up at dog parks and talk to friends about things they likely don’t talk about in other arenas. They seem to feel safe among kinfolks. Some people began talking to me about pretty personal stuff within a minute of meeting them such as a woman who decided that she didn’t like her BFF because of how she treated a dog she just rescued, and a woman who, after meeting someone for around 10 seconds, decided that the woman wasn’t a good dog owner because she was suffering from bipolar disorder but didn’t know it! Some people – men and women, alike – have told me that dogs are social magnets and make it easy to meet other people who also are out with their canine BFF. These discussions often have very interesting “conclusions.” Enough on that for now …
Why do dogs eat grass?
There are many reasons and Stanley Coren has written a good myth-debunking essay on this. He notes that dogs do not eat grass to cause vomiting to relieve stomach distress. While it’s possible that some dogs do, we need a lot more research on this question.
More questions for a future essay
The list of questions can go on and on, and some questions I’ll consider in the future include: Why do dogs chase their tail? Why do dogs bark and what sort of barks are there? Why do dogs bark and howl at sirens? Why does my dog hoard tennis balls? Are dogs territorial as are wolves? Why do dogs pee/scent mark so much? Why do dogs sniff pee so much even when it’s their friends’ pee? Why do males sometimes squat when they pee and why do females sometimes lift their leg? Do dogs have a sense of self? Studies of “yellow snow” suggest they do. Are they conscious? (Of course they are, and scientists agree.) Why do dogs sniff and eat frozen turds? Why do dogs eat gooey feces? Why do dogs dig holes and then lie in them? Why do dogs scrape their butt on the ground? Why do people openly disparage their dog and then tell them they love them? (I often hear something like, “Oh, he’s really retarded, but I love him” or “You are so fat!” or “My goodness, your breath stinks!). Do dogs pick up on these mixed signals?“ Do dogs have a “little dog” complex? Do dogs make and use tools? (They do.) Why do dogs drink filthy water? How do dogs pick their mates? Do dogs dream? Do dogs get heartburn? Do dogs sweat? Do dogs understand baby talk? (People are well known to talk to dogs as if they’re infant humans.) What does “feral” mean? How did wolves become dogs? (Please see essays by Mark Derr.) What’s the difference between a socialized animal and a domesticated animal? (A wolf who likes humans is a socialized wolf. A domesticated wolf is a dog.) Do dogs really live in the moment? (No, their past clearly influences their behavior — just ask anyone who’s rescued an abused dog — and they think about the future — just watch a dog waiting for a frisbee or a ball to be thrown and watch them track the trajectory, although tracking might not be conscious, even in humans.)
Where to from here? There are many holes in the database and dog parks are gold mines of information.
It’s important to stress that there here are many holes in the database, and people find this very surprising because of many popular dog books that purport to “tell it like it is,” as if there are facts about this or that question. Dog parks are wonderful places for studies in dog-dog ethology and anthrozoology, the study of human-animal interactions, and I hope this essay will stimulate people to conduct formal studies and encourage citizen scientists to share their stories that can be used to generate further more systematic studies.
Studies in dog parks, that some may call “too uncontrolled,” may also shed light on questions that are being debated among different groups of researchers, for example, whether dogs follow human gazing or pointing and how well they perform these activities, or if dogs have a theory of mind. And, let’s face it, some laboratory studies also are rather uncontrolled, mainly because dogs are such a mixed bag of participants as might be the researchers themselves. Watching animals in their “natural habitats,” and dog parks might qualify as such, has shed much light on various aspects of behavior that are difficult to study in captivity or in other more controlled environs. Although many lab studies of dogs are likely more controlled than those conducted on free-running dogs, many people have seen behavior patterns that warrant reinvestigation in more ecologically relevant situations.
I continue to learn a lot about dog and human behavior when I visit dog parks. People often feel free to offer advice even when they knew who I am and what I do for a living. But, on a number of occasions, I chose to keep some distance to determine if their comments and explanations to other people (and often to the dogs) differ from when they know I’m around. For the most part, they did not. For example, I’ve been told that “familiar dogs definitely play differently from unfamiliar dogs,” that “humping is always about dominance,” that “dogs know what other dogs are thinking and feeling and they also know the same about people,” and that “know-it-all researchers ought to get off their butts and out of the ivory tower and watch dogs in the field.” On a few occasions some people made it clear that I had a lot to learn about dogs and they could teach me some valuable lessons. When I agreed, they were very surprised, and over the years I’ve had many interesting discussions that have made me re-evaluate what we know and don’t know about dog behavior and dog-human interactions. Concerning two of the areas above, we actually don’t know if familiar dogs play differently from unfamiliar dogs (I’ve got a student studying this) and, as I mentioned above, there’s not just one explanation for humping. Anyway …
There are numerous research projects just waiting to be done as we watch dogs romp here and there and have fun, meet old friends and strangers, and negotiate social relationships with other dogs and humans. I’m aware that I may have missed some studies so I hope readers will send me the details and share them in the comments section for this essay.
Dog behavior, in all of its kaleidoscopic forms, is an incredibly exciting field of research
Dogs openly share with us a lot about what they know and what they’re thinking and feeling, and we just have to be keen enough and patient enough to figure it all out. Dogs also are wonderful social catalysts and social magnets and they can help us learn a lot about ourselves. The arena of inquiry about dog-dog behavior and dogs and their humans truly is deep and boundless and there are numerous opportunities for studies at dog parks, where dogs frolic and sometimes cower and have to learn to deal with a wide variety of social situations with other dogs and humans, and at other places where dogs and humans congregate. And, as I mentioned before, talking about “the dog” can often be misleading and perilous.
Dog behavior, in all of its kaleidoscopic forms, is an incredibly exciting field of research, and I really look forward to seeing further studies of the above and other questions. When people tell me they’re having trouble coming up with a research project I humbly ask them if they’ve thought about dogs, and then the conversation gets going and going and going ….
Marc Bekoff’s latest books are Jasper’s story: Saving moon bears (with Jill Robinson), Ignoring nature no more: The case for compassionate conservation, Why dogs hump and bees get depressed, and Rewilding our hearts: Building pathways of compassion and coexistence.The Jane effect: Celebrating Jane Goodall (edited with Dale Peterson) has recently been published. (marcbekoff.com; @MarcBekoff)
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Now I don’t know about you but I found this essay both fascinating and wonderfully interesting. If I ever get the chance to publish other essays or information from the good Professor you can bet your life that I will, and without hesitation!
Part One of a stunningly interesting essay from Professor Marc Bekoff.
As a newbie yet-to-be published author I am technically at the stage of having a completed draft that Jeannie and a close friend are proof-reading. Then after corrections, it is going to be released to some ‘beta’ readers who will give me some early feedback. (Too scary to even think of just now!)
OK, with that admission out of the way, let me move on to my ‘draft’ chapter on play; in Part Four of the book. In researching what is known about the way that dogs play and what lessons there are for us humans, I came across an essay by Marc Bekoff, Ph.D. Marc is Professor Emeritus of Ecology and Evolutionary Biology at the University of Colorado, Boulder. His essay had been published in May on the website of Psychology Today. It was incredibly interesting and full of material for the book!
Within a few minutes of me sending Professor Bekoff an email requesting permission to include quotations in my ‘draft’ chapter, he had responded in the affirmative. I had also sought his permission to publish the essay here on Learning from Dogs. Again, a very quick, positive reply.
Thus with Marc Bekoff’s generous permission, here is his essay in full. (I’ve taken the decision to split this long essay into two parts.)
Finally, Professor Bekoff includes numerous ‘html’ links within his essay to other materials. I’ve cheated by saving quite some time adding those links but have underlined the linked phrase in question, apart from the very early chapters that do have ‘html’ links. Please go to the site of the original essay to explore further those links.
Marc Bekoff and friend.
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Butts and Noses: Secrets and Lessons from Dog Parks (Part One)
Dog parks are gold mines of information about the behavior of dogs and humans
I love going to dog parks. So, too, do dogs and their people. Dog parks are a fascinating recent and growing cultural phenomenon. Indeed, I go rather often to what I call my field sites, for that’s what they are, to study play behavior and other aspects of dog behavior including urination and marking patterns, greeting patterns, social interactions including how and why dogs enter, become part of, and leave short-term and long-term groups, and social relationships. I also study human-dog interactions and when I study how humans and dogs interact I also learn a lot about the humans. For example, I often hear how happy people are that their dogs are free to run here and there or free to be dogs when they’re at the dog park. Often, they say this while they’re constantly calling them back to them even when the dog is simply sniffing here or there or looking for a friend. They also call them to break up play when they think it’s gotten out of hand. You call this free?
Two works to which I often go when thinking about social dynamics at dog parks are Matthew Gilbert’s book titled Off the Leash: A Year at the Dog Park and Sonoma State University’s Patrick Jackson‘s essay called “Situated Activities in a Dog Park: Identity and Conflict in Human-Animal Space.” Linda Case writes about Dr. Jackson’s study and she is not a fan of dog parks because she feels they’re not safe and because “Dog park people frequently behave badly by not being responsible dog owners and by being inconsiderate and uncaring towards other people and their dogs.” We really need empirical studies on the safety issue. After having spent countless hours at dog parks I’ve never entertained drawing this conclusion, but there aren’t any detailed data on this topic of which I’m aware. However, on occasion, but hardly regularly, I’ve marveled at just how inconsiderate a very few people can be. But, as part of the gossip network among the other people, I often hear that a given person behaves like this even in non-dog park situations. On a few ocassions I’ve had a rather inconsiderate person ask me why their dog has bad manners and rather than get involved I call attention to some interesting dog-dog interactions.
Most people realize that “dogs are in” and countless scientific and popular essays (see also New Directions in Canine Behavior, Julie Hecht’s “Dog Spies,” and essays written for Psychology Today by writers including Mark Derr, Stanley Coren, Jessica Pierce, and yours truly) and books have been published in the past decade or so about these fascinating mammals. The bottom line is that a plethora of detailed data — and the database is rapidly increasing — clearly show that dogs are thinking, clever, and feeling sentient beings, and viewing them as sort of robotic machines is incredibly misleading and academically corrupt (please see this essay). This does not mean that they are “doggy Einsteins,” however, ample data from numerous different research groups around the world clearly show that dogs are rather complex and incredibly interesting mammals who deserve a good deal of further study. Perhaps even René Descartes would consider changing his views on nonhuman animals (animals) as unfeeling machines given the enormous amount of empirical evidence on sentience in animals.
Why do dogs do this and that? Canine confidential
“Why do dogs do this and that?” The purpose of this short essay, that can be conceived as a field guide to the extremely interesting and largely unknown world of the fascinating dogs with whom we share our lives, is to provide some lessons in dog behavior from observations and questions arising from visits to various dog parks, especially around Boulder, Colorado where I live. I see myself as “a naturalist in a dog park” and aim to show here, via a series of questions, what we know and don’t know about many different aspects of dog behavior. Dogs are often called social catalysts – icebreakers or lubricants — for social interactions with other dogs and they often open the door for pretty frank and wide-ranging conversations among familiar and unfamiliar humans. It always amazes me how dogs free up humans to talk about things they might be more reluctant to share in other venues including what they really think about their human “BFF’s — best friends forever” — and the infamous “3 p’s,” namely, pee, poop, and puke. Often when I get home and look at my notes I view them as “canine confidential.” So, what follows is a sampler of many “why” questions, including why dogs hump, why they sniff butts, genitals, and ears, why they play, and why they organize themselves the ways they do. There are also many “what” questions such as “What do they know?”, “What are they thinking?”, and “What are they feeling?” in different contexts. The list of questions is endless and I’m sure those that follow can easily mutate in many, many more.
People who are lucky enough to share their world with a dog often think they know it all. And, while they do know a good deal about what their canine buddy is thinking and feeling and what they want and need, there really are large gaps in the scientific database. As I mentioned above, there are numerous anecdotes about why dogs do this or that, and, taken together, they form their own pool of data. However, while the claim that “the plural of anecdote is data” applies in some cases, many mysteries still loom in what we actually know about the world of dogs.
Furthermore, often there is no single “right” answer to a question — even some of the most commonly asked queries — and that’s just fine. Dogs compose a highly variable group of mammals — I often say “the dog” doesn’t really exist — so it’s not surprising that just when we think we have a solid handle on what they’re thinking and feeling and why they do what they’re doing an exception or three arises. Surely, the early experience of individual dogs influences their later behavior. So, while we know a lot, people are often amazed by how little we know and that hard and fast answers can’t be given to some common questions.
Visiting dog parks can be wonderful educational experiences. Visits, some lasting hours on end each and every day, can be myth breakers and icebreakers, and also provide information about why dogs are doing this or that. People are always asking questions about why their dog is doing something and really want to know what we know. They also freely offer advice to other people about why their dog is doing something and how they can treat various problems such as shyness, aggressiveness, and why dogs ignore what their human is asking them to do. And, as I wrote above, dogs also are icebreakers – “social catalysts” the academics call them — and get people to talk with one another and to talk about things.
The questions below range from interests about basic dog behavior such as why do dogs stick their noses where they do, and why they play, bark, pee, eat turds, and roll on their back, to more lofty questions about whether dogs have a theory of mind and whether they know what they look like and if they know who they are. A good number of questions deal with dogs’ butts and noses, hence the title of this brief essay (motivated, of course, by the famous rock group, Guns N’ Roses). Butts and noses — including other “private parts” – figure into a number of the questions below. We all know dogs put their noses in places where we couldn’t imagine there would be anything of interest, and also place their active snouts, often on their first introduction, to other dogs and humans, in places that make us rather uneasy. We don’t greet friends or strangers by immediately licking their mouth or with a genital sniff or slurp. There also are many general questions that don’t center on anatomical features that figure largely in the world of the dog. I’ll answer each question briefly with what we know from various types of research, with some stories where they’re available, and note where we really need more information. It’s entirely possible that I have missed a given study (or studies) and I apologize for the oversights and look forward to hearing from readers.
While we know a lot about dogs, there are holes in the database, so the future is chock full of exciting research. Readers will discover that what we often take to be the gospel about dog behavior frequently isn’t all that well supported by published empirical research or even detailed observations. While good stories are interesting and can serve to stimulate more “controlled” research, in and of themselves they don’t constitute “data” as do detailed and more focused studies (I’ll suggest below that studies in dog parks may be more “ecologically relevant” than studies in laboratories and help to settle on-going debates among different research groups). In some ways, then, this essay is sort of a myth-buster and a fun way not only to learn about dogs but also to stimulate further research about dogs and dogs and humans. So, here we go.
While Jean and I no longer attend meetings of the Southern Oregon Beekeepers Association, the meetings are a little too far away for us, I still subscribe to their email updates. Thus that’s how I was informed of a most incredible set of photographs on the National Geographic website. Here’s how the article opens:
Researchers take advantage of photography technology developed by the U.S. Army to capture beautiful portraits of bees native to North America.
Text by Jane J. Lee
Photography by Sam Droege, USGS
Bees are the workhorses of the insect world. By transferring pollen from one plant to another, they ensure the next generation of the fruits, nuts, vegetables, and wildflowers we so enjoy.
There are 4,000 species of North American bees living north of Mexico, says Sam Droege, head of the bee inventory and monitoring program at the U.S. Geological Survey (USGS).
Only 40 of them are introduced species, including the European honeybee. (See “Pictures: Colored Honey Made by Candy-Eating French Bees.”)
Most of the natives are overlooked because “a lot of them are super tiny,” Droege says. “The bulk of the bees in the area are about half the size of a honeybee.”
The native species also go unnoticed because they don’t sting, he adds. They quietly go about their business gathering pollen from flowers in gardens, near sand dunes, or on the edges of parks.
The bee pictured above is a species of carpenter bee from the Dominican Republic known as Xylocopa mordax. It nests in wood or yucca stems, and is closely related to the U.S. species that chews through the wood in backyard decks.
Trust me when I say that to view these images, and more, in their breathtaking beauty you need to go here and revel in what you see and read. Plus, in the text above I didn’t include the many links that are in the Nat Geo site’s version – so go there!
The natural world is so deserving of man’s care and protection.
Like most young boys I was on a bicycle at a very young age. Then once sufficiently old to drive a motor car that was the end of bike riding for almost forever. Except that a few months ago the argument for anaerobic exercise as a means of delaying the worst of all the ailments that come with an ageing body (and mind!) convinced me to get back on a bike. That was made a lot easier because a small group of close neighbours ride three times a week and that seemed an opportunity not to be missed.
Those same neighbours supported, and recommended, a local bike shop in Grants Pass and I have ‘borrowed’ this picture of the store from their website.
Views of the interior of Don’s Bike Center, Grants Pass, Oregon.
Having now been riding an average of 35 miles a week for the last ten or twelve weeks, I can vouch for the benefits it is providing.
Logically, therefore, it was going to be much better if Jean could come with me, and the rest of the riding group, each week. But there was a small challenge: Jean had never ridden a bike in her life. Horses, yes! Bicycles, no!
Eric over at the bike centre lent Jean a two-wheeler to try but very quickly it was clear that Jean would not easily develop the confidence to ride on our local roads. The next suggestion from Erik was a tricycle! Not one that was designed in the days of Noah and his Arc but a modern model of the ‘recumbent’ design. In particular, one manufactured by Sun Bicycles. Here’s an image of the trike from the Sun’s website.
Sun EZ Tri Classic SX
Thus it came about that last Friday Jean and I went over to Don’s Bike Center to collect her new bike.
Eric at the store checking that the bike was properly set up for Jean.
Then once home it was time for Jean to learn a number of very new skills. At first just by riding around our turning circle in front of the house.
Then trying out our quarter-mile driveway that includes a couple of steep gradients; well steep for a cycle rider!
Another view of Jean getting to know her new bike here at home.
Then, deep breath, time to put on the safety helmet and go for a short ride on Hugo Road, our local road that runs past our property.
Slightly blurred image as I had the camera in my hand as I was riding behind Jean.
So all’s well that ends well!
Jean coming up the road towards the driveway entrance!
I will embarrass Jean by saying to my dear readers that Jean is already getting familiar with riding her trike and it won’t be too long before our riding group will be increased by one Mrs. Handover on her bike!
The things we do to stay healthy in our increasing years!
I can’t recall how but recently I came across an online source of analysis, ideas and research that calls itself The Conversation. In their folder How we’re different, (in part) they explain:
The Conversation US launched as a pilot project in October 2014. It is an independent source of news and views from the academic and research community, delivered direct to the public.
Our team of professional editors work with university and research institute experts to unlock their knowledge for use by the wider public.
Access to independent, high quality, authenticated, explanatory journalism underpins a functioning democracy. Our aim is to promote better understanding of current affairs and complex issues. And hopefully allow for a better quality of public discourse and conversation.
We aim to help rebuild trust in journalism. All authors and editors sign up to our Editorial Charter. All contributors must abide by our Community Standards policy. We only allow authors to write on a subject on which they have proven expertise, which they must disclose alongside their article. Authors’ funding and potential conflicts of interest must also be disclosed. Failure to do so carries a risk of being banned from contributing to the site.
The Conversation launched in Australia in March 2011 and the UK in May 2013.
So with no further ado, and within the terms of The Conversation, may I share:
What does it mean to preserve nature in the Age of Humans?
Is the Earth now spinning through the “Age of Humans?” More than a few scientists think so. They’ve suggested, in fact, that we modify the name of the current geological epoch (the Holocene, which began roughly 12,000 years ago) to the “Anthropocene.” It’s a term first put into wide circulation by Nobel-Prize winning atmospheric chemist Paul Crutzen in an article published in Nature in 2002. And it’s stirring up a good deal of debate, not only among geologists.
The idea is that we needed a new planetary marker to account for the scale of human changes to the Earth: extensive land transformation, mass extinctions, control of the nitrogen cycle, large-scale water diversion, and especially change of the atmosphere through the emission of greenhouse gases. Although naming geological epochs isn’t usually a controversial act, the Anthropocene proposal is radical because it means that what had been an environmental fixture against which people acted, the geological record, is now just another expression of the human presence.
It seems to be a particularly bitter pill to swallow for nature preservationists, heirs to the American tradition led by writers, scientists and activists such as John Muir, Aldo Leopold, David Brower, Rachel Carson and Edward Abbey. That’s because some have argued the traditional focus on the goal of wilderness protection rests on a view of “pristine” nature that is simply no longer viable on a planet hurtling toward nine billion human inhabitants.
Given this situation, we felt the time was ripe to explore the impact of the Anthropocene on the idea and practice of nature preservation. Our plan was to create a salon, a kind of literary summit. But we wanted to cut to the chase: What does it mean to “save American nature” in the age of humans?
We invited a distinguished group of environmental writers – scientists, philosophers, historians, journalists, agency administrators and activists – to give it their best shot. The essays appear in the new collection, After Preservation: Saving American Nature in the Age of Humans.
Getting the chronology right, it turns out, matters less than we might think. The historian J R McNeill recounts the difficulty in fixing a clear start date for the Anthropocene. (Should it coincide with the late Pleistocene megafaunal extinctions? The rise of agriculture? The birth of the industrial era in the 19th century? The mid-20th century uptick in carbon emissions?) Wherever we peg it, McNeill argues, the future of nature preservation in America will increasingly be shaped by environmental traditions more congruent with notions of a human-driven world.
Is humanity now ‘too big for nature?’ (Photo by Mark Klett) Trails of Weekend Explorers, near Hanksville, CC BY-NC-ND
It’s a view shared by ecologist Erle Ellis. We’ve simply “outgrown” nature, Ellis argues, and so we have to become more comfortable within the “used and crowded planet” we’ve made. Andrew Revkin, author of the Dot Earth environmental blog for the New York Times, sounds a similar theme, arguing that the whole idea of “saving” a nature viewed outside the human presence is an anachronism. What we need instead, he suggests, is to focus on restoring a bipartisan politics able to cope with the challenges of living in and managing a human-driven world.
But all this talk of a more human-driven world and a species that is now “too big for nature” is dismissed by wilderness activist Dave Foreman, who spies a dark future awaiting us if we continue on the current path. Foreman condemns the vision of the “Anthropoceniacs” who he argues are promoting nothing less than the technological takeover of life on the planet. We need to remind ourselves, he writes, “that we are not gods.”
The need for humility courses throughout After Preservation. But it’s joined by an equally strong plea for pragmatism and more intelligent control. As science journalist Emma Marris writes, the desire to restrain ourselves in nature may ironically prove self-defeating if it means we can’t intervene to prevent present and future species extinctions. The biologist Harry Greene echoes this view with his manifesto to “rewild” the Anthropocene by actively introducing cheetahs, elephants, camels and lions to North America as proxies for the long-lost megafauna of the Pleistocene. It’s a rebooting of the wilderness idea – or maybe a wilderness 2.0 – for the technological age.
Regardless of how the Anthropocene debate plays out, environmental science and policy experts Norm Christensen and Jack Ward Thomas remind everyone how hard it is to implement whatever we want on the ground without unexpected consequences. Thomas, a former chief of the US Forest Service, describes how the unpredictability of ecosystems can result in cases in which the preservationist agenda becomes complicated as ecosystems change in surprising ways (for instance, when an unplanned growth in the barred owl population starts to displace the protected northern spotted owl in the Pacific Northwest).
The Anthropocene has become an environmentalist Rorshach. (Photo by Mark Klett) Computer Monitor Washed Down Stream by Flood Waters, Salt River, CC BY-NC-ND
Much of the discussion of the Anthropocene must hinge on values. But many of our authors conclude that it also needs grounding in a deeper and more nuanced understanding of history. As historians Donald Worster and Curt Meine point out, even if purist notions of the wilderness may no longer be realistic in the Anthropocene, it would be a grave mistake to jettison our environmental traditions and the commitment to protecting as much wildness as we can.
Even so, many suggest that nature conservation will have to evolve in order to reflect a more diverse constituency, an urban population not well served by the older preservationist values and images. Or, as ecologist Michelle Marvier and The Nature Conservancy’s Hazel Wong sum it up, “Move over, Grizzly Adams.”
The debate wasn’t settled at the end of After Preservation but we didn’t expect it to be. The argument has deep roots, as the writer and climate activist Bill McKibben reminds us in his coda to the book. And in one way or another, pragmatists and preservationists have been at odds since the birth of the American conservation movement in the late 19th century. The Anthropocene debate is only the most recent replaying of this enduring struggle.
What way forward? We think John McPhee probably got it about right nearly forty years ago in his memorable portrait of modern Alaska, Coming into the Country:
Only an easygoing extremist would preserve every bit of country. And extremists alone would exploit it all. Everyone else has to think the matter through – choose a point of tolerance, however much the point might tend to one side.
Our hope is that After Preservation will help us choose that point of tolerance as we puzzle through the environmental ethos of the Anthropocene. We’ve little choice: it’s going to be a challenge confronting the meaning and work of nature preservation for some time to come.
Last Saturday, in a humorous post called Cognitive Ageing, I wrote:
Or put another way: I can remember everything except the things I forget.
Like many others of my age, the short-term memory is not as sharp as it used to be (not that I can remember when that was! 😉 )
Today’s post is to pass on a recommendation for a programme called Lumosity. It was recommended to me by my local doctor and I signed up in February of this year. Clearly, it is impossible to know, in a scientific way, how much good it has done me but instinctively I feel it has made a strong, positive difference. Let me quote from their website:
The Science Behind Lumosity
Neuroplasticity: how the brain is capable of change
Scientists have historically believed that once a person reaches adulthood, their cognitive abilities are immutable. But beginning in the early twentieth century, that theory has been contested by evidence suggesting that the brain’s abilities are in fact malleable and plastic. According to this principle of neuroplasticity, the brain is constantly changing in response to various experiences. New behaviors, new learnings, and even environmental changes or physical injuries may all stimulate the brain to create new neural pathways or reorganize existing ones, fundamentally altering how information is processed.
One of the most dramatic examples of neuroplasticity at work comes from a 2000 brain scan study on London taxi drivers (Maguire et al., 2000). In order to earn a license, London taxi drivers typically spend about two years learning to navigate the city’s serpentine streets. What mark, the study’s researchers wondered, did this long, rigorous period of training leave on taxi drivers’ brains? Under the scrutiny of fMRI scans, 16 male taxi drivers in this study were revealed to have larger hippocampuses than a control group of 50 healthy males of similar ages. And the longer the time spent as a taxi driver, the larger the hippocampus tended to be. As a brain area involved in memory and navigation, the hippocampus likely changed in response to the taxi drivers’ experiences.
Most instances of neuroplasticity-based changes in the brain are much more subtle. But in recent decades, it’s cases like that of the London taxi drivers that have inspired certain members of the scientific community to pursue the next logical step in research: rather than passively waiting to see how the brain might respond to circumstances, is it possible to direct that capacity for change, targeting improvements in specific key abilities?
The science of cognitive training seeks to answer this question. In 2013 alone, 30 cognitive training studies were registered on the government database ClinicalTrials.gov. Lumosity scientists, with the help of outside collaborators, contribute to this research effort: so far, 7 peer reviewed studies have been published using Lumosity as a cognitive training tool for diverse populations, including healthy adults, cancer survivors, elderly people, and children with a genetic disorder.
Maguire, E. A., Gadian, D. G., Johnsrude, I. S., Good, C. D., Ashburner, J., Frackowiak, R. S. J., & Frith, C. D. (2000). Navigation-related structural change in the hippocampi of taxi drivers. Proceedings of the National Academy of Sciences of the United States of America, 97(8), 4398-4403.
Clearly, without trying it out yourself, it’s difficult for me to convey the nature of the ‘games’ that are provided.
What I can do is to republish a review that appeared on the website MD-Health.
Does Lumosity Work?
Lumosity was designed by several leading neuroscientists, which adds an air of credibility to this popular site, and combines the perks of social networking with brain training technology that supposedly makes your brain function at a higher level. But do these brain training games really work? There is plenty of evidence to support and contract the claims made by this popular gaming website, so it is important to look at the facts before making this determination.
What is Lumosity?
Lumosity is a webpage that features several different brain training games. Players are encouraged to create a profile that allows them to track their progress and play certain games that target mental flexibility, memory, problem solving, speed and attention. The idea is that performing these tasks regularly will help “train” your brain to function more effectively.
How Does Lumosity Work?
The web page explains that Lumosity is based on neuroplasticity, which treats the brain like a muscle that needs to adapt when it is presented with new challenges. The idea here is that if you present your brain with harder challenges, the portion of your brain meant to help solve them will grow larger and more functional. Previously it was believed that neuroplasticity was only available in children with brains that were still developing, but recent science leads researchers to believe that this skill is also available for adults.
Lumosity depends on two basic elements when users create their training program. First, users need to use the program regularly. This is similar to creating a daily routine at your local gym to work and tone your muscles. Your routine will not be as effective if you do not stick with it. The second part of this training program depends on users using many different types of games. There are 35 different games available on Lumosity in addition to many different skill levels within these games. Players should use a variety of different games and increase the difficulty level over time to help ensure that they are continuing to challenge the mind. Creating your initial profile gives the player an opportunity to see what weaknesses they have so they can create a routine that is ideal for their situation.
Is Lumosity Effective?
There are several scientific studies that lead scientists to believe that the brain training activities at Lumosity do have an effect on the brain. A study at the University of Michigan found that adults that used brain training games for a regular amount of time saw an improvement in test scores for dual attention asks and memory games in multiple tests. A similar study at Brown University also saw adults exceeding expectations in brain performance after using brain training games to aid in their work. These programs were found to boost the working memory which helps users keep track of tasks they are currently performing.
The thing to remember when analyzing these results is that they came from laboratory conditions. These adults used Lumosity games for hours every day for several months. Users that do not work on a similar schedule will not see these types of results. There is a great deal of evidence that supports the idea that brain training games can help grow and develop the mind, but not necessarily any evidence that Lumosity and the brain training games available here are more effective than other training games that are on the market elsewhere. In general, keeping the mind active and challenging your mind to learn more advanced tasks and ways of thinking are healthy and can help you perform tasks more effectively, and if Lumosity helps you accomplish this, then it can be seen as a positive asset.
There was a review published in The Guardian newspaper back in April, 2013 from which this extract is offered:
According to the website for Lumosity, which devised these games and is one of the best-known internet providers of brain training, setting aside a few minutes each day to complete the above tasks can make you feel “smarter, sharper, and brighter”. By factoring in a mental workout in the same way that we might go to the gym to exercise, we get cleverer and our IQ rockets.
That, at least, is the idea. And there are lots of people who buy it. In recent years, brain training has become a multimillion-pound business with companies such as Jungle Memory, Nintendo and CogniFit developing a wide range of user-friendly neuroscientific puzzles for the average punter. Lumosity itself has grown by 150% year-on-year since its launch in 2005 and now reaches more than 35 million people worldwide. In January alone, the company’s mobile app was downloaded nearly 50,000 times a day and its revenue hit $24m (£16m).
Co-founded by Michael Scanlon after he abandoned his neuroscience PhD at Stanford University, California, the business also has an extensive research programme that studies the effects of computerised cognitive training as well as conducting experiments over the web.
I can also republish another article from the Lumosity website:
The Science Behind Lumosity
The scientific roots of the Lumosity program
Research has found that certain types of activities may impact the brain more than others (Mechelli et al., 2004; Gaser and Schlaug, 2003; Draganski et al., 2006). It’s believed that as an activity is repeated, the brain tends to fall back on the same set of existing neural pathways. To continue changing, the brain must be exposed to novel, adaptive experiences that challenge it to work in new ways.
Drawing on this idea, Lumosity is designed to give each person a set of exercises that challenge their cognitive abilities.
Lumosity “games” are based on a combination of common neuropsychological and cognitive tasks, many of which have been used in research for decades, and new tasks designed by an in-house science team. Working with experienced game designers, Lumosity neuroscientists have transformed these tasks into over 40 challenging, adaptive games.
Lumosity’s game-based training program is designed to expose your brain to gradually increasing levels of challenges, adapting game difficulty to your individual ability level. As your scores increase, you may encounter new or more difficult games. Modelled from the concept of a physical personal trainer, Lumosity pushes you to operate at the limits of your abilities and stay challenged.
Gaser, C. & Schlaug, G. (2003). Brain structures differ between musicians and non-musicians. Journal of Neuroscience, 23(27), 9240-9245.
Draganski, B., Gaser, C., Kempermann, G., Kuhn, H. G., Winkler, J., Büchel, C., & May, A (2006). Temporal and spatial dynamics of brain structure changes during extensive learning. Journal of Neuroscience, 26(23), 6314-6317.
Mechelli, A., Crinion, J. T., Noppeney, U., O’Doherty, J., Ashburner, J., Frackowiak, R. S., & Price, C.J. (2004). Neurolinguistics: Structural plasticity in the bilingual brain. Nature, 431, 757.
Lumosity is not expensive and while it is impossible to be objective about the positive difference it is giving me I wouldn’t give up on it.
Dave Isay opened the first StoryCorps booth in New York’s Grand Central Terminal in 2003 with the intention of creating a quiet place where a person could honor someone who mattered to them by listening to their story. Since then, StoryCorps has evolved into the single largest collection of human voices ever recorded. His TED Prize wish: to grow this digital archive of the collective wisdom of humanity. Hear his vision to take StoryCorps global — and how you can be a part of it by interviewing someone with the StoryCorps app.
It was a remarkable and fascinating talk and, thanks to YouTube, I’m able to share it with you.
I have no doubt that after watching Dave Isay’s talk you will want to go to the StoryCorps website.
Dogs watch us all the time and read our body language like a sixth sense.
A fascinating, and inspiring, insight into our favourite animal companion.
Published on Jan 26, 2014
Check out BBC Earth on BBC online
Dogs watch us all the time and read our body language like a sixth sense. They also smell our bodies for changes.
Max smelt cancer in Maureen before any medical scans could pick it up. Dogs do this naturally and can be trained to pick up on tiny volatile chemicals given off by cancerous tumors. They can even be taught to alert diabetics to low blood sugar levels.
This is Frankie, a German shepherd mix. He can sniff out thyroid cancer in patients’ urine samples with 88% accuracy, according to a new study.
Image via The Endocrine Society.
A trained scent dog accurately identified whether patients’ urine samples had thyroid cancer or were benign (noncancerous) 88 percent of the time, according to a new study by researchers at University of Arkansas for Medical Sciences (UAMS). The results were presented March 6 at the Endocrine Society’s annual meeting in San Diego.
Approximately 62,450 new cases of thyroid cancer will be diagnosed in the US this year, and around 1,950 Americans will die from the disease.
Techniques used to diagnose thyroid cancer include fine-needle aspiration biopsy, which involves the patient having a thin needle inserted into the thyroid gland in the neck to obtain a tissue sample. Donald Bodenner, MD, PhD chief of endocrine oncology at UAMS is the study’s senior investigator. Bodenner said:
Scent-trained canines could be used by physicians to detect the presence of thyroid cancer at an early stage and to avoid surgery when unwarranted.
Study-coauthor Arny Ferrando previously “imprinted,” or scent-trained, a rescued male German Shepherd-mix named Frankie to recognize the smell of cancer in thyroid tissue. Ferrando, who noted that dogs have at least 10 times more smell receptors than humans, said:
Frankie is the first dog trained to differentiate benign thyroid disease from thyroid cancer by smelling a person’s urine.
German shepherd mix Frankie, a formerly stray dog rescued in Little Rock, Arkansas, was trained to diagnosis thyroid cancer through scent imprinting. Image credit: AM Hinson/BBC
In this study, 34 patients gave a urine sample before they went on to have a biopsy of suspicious thyroid nodules and surgery. The surgical pathology result was diagnosed as cancer in 15 patients and benign thyroid disease in 19. These urine samples were presented one at a time to Frankie to sniff. Frankie had been trained to alert to a cancer sample by lying down, and turning away from a benign sample to alert the absence of cancer.
The dog’s alert matched the surgical pathology diagnosis in 30 of the 34 study samples, the investigators reported.
Bottom line: A new study by University of Arkansas for Medical Sciences (UAMS) researchers presented March 6, 2015 at the Endocrine Society’s annual meeting in San Diego described Frankie, a trained scent dog that accurately identified whether patients’ urine samples had thyroid cancer or were benign 88 percent of the time.
Learning from Dogs 