Published on Portside (https://portside.org)
On World Dog Day, How Dogs Saved Humankind
Caren Cooper
:
Sunday, August 23, 2015
PLOS blogs
Thank you, Lassie for saving my life! And thank you Rover, Spot, Fido,
Benji, and Snoopy. We can all shout this refrain, not just those pulled from a
burning building or comforted by slobbery kisses. Dogs may have saved the
entire human race. Not recently, but back when our species was just starting
out on the journey to dominate the Earth.
Neanderthals were in Europe and Asia for two hundred thousand years, but
began their demise as our people, Homo sapiens, expanded beyond Africa. Like
Neanderthals, humans hunted, used tools, were pyrotechnic, and social enough to
have cliques. Some researchers suspect that humans had one advantage that
Neanderthals lacked: the precursor to (hu-)man’s best friend, the domesticated
dog. Less wild than wolves, more wild than today’s collie, early humans likely
survived an epoch of environmental change with the help of furry friends that
were eventually domesticated as dogs.
That’s the argument made by Pat Shipman in her book, The Invaders: How Humans and Their Dogs Drove Neanderthals
to Extinction [1].
Shipman, a retired adjunct professor of anthropology at Pennsylvania State
University, explores the evidence for a historic alliance between dogs and
humans and what such an alliance enabled, including, for example, the hunting and transport of wooly mammoths
[2].
Our longstanding relationship with dogs has led researchers in animal
behavior and comparative psychology find our loyal companions (Canis
familiaris) to be an excellent subject for studies of the mind. Some animal
behaviorists prefer to study non-human primates because these are
evolutionarily the closest relatives to our species. Even though we share more
DNA with chimps, we’ve shared more of our social history with dogs. Now dogs
solve social problems more similarly to human toddlers than many primates do.
Their domestication process endowed them with skills to understand our verbal
and body languages, and to read our emotional states which is something akin to
empathy.
Children develop empathy after age four. Dogs don’t necessarily have the
mental capacity to imagine walking their paws in a person’s shoes, but they
have emotional contagion, like toddlers. Emotional contagion means they can
respond to the emotions of others without fully understanding what the other is
feeling. When dogs display sympathy and behave in comforting ways, it is in
response to their owner being sad [3]. When dogs are wary, their owner is giving off a vibe of distrust or fear.
When a dog is humping, their owner is feeling…well, never mind, that behavior
[4] is an independent, normal
part of a dog’s life.
Studies of dog cognition, behavior, and welfare have been making progress
in laboratories for the last decade and are now poised to fetch new knowledge
with giant leaps through citizen science.
In laboratories, research on dog cognition is modeled after research in
developmental psychology of human infants. People are invited to bring their
family dog into a research space where they are observed carrying out a variety
of experimental tasks. Sometimes researchers visit dogs at their home or at
doggy daycare centers, parks, or animal shelters to carry out observations. The
traditional approach has one big limitation: small sample sizes. Most studies
involve tests of a few dozen individuals. With citizen science, studies have
the potential for enormous sample sizes by drawing from tens of millions of family
dogs around the globe.
In one type, participants provide raw data, such as in the form of video-recordings,
and researchers interpret and decipher the meaning. This was the approached
used by scientist and Scientific American blogger Julie Hecht when she was a
graduate student in the Horowitz Dog Cognition Lab [6]. To pursue research questions about dog-human relationships [7], she leveraged the Internet to expand the laboratory setting into homes
and backyards around the world. In a short-term (now over) citizen science
project called Play with your Dog [8], she asked owners to record and upload videos of themselves at play with
their dog.
In another type of dog citizen science, participants carry out experiments,
interpret dog behavior, and provide researchers with the results. In the
citizen science project Dognition [9], developed by Duke University Professor Brian Hare, owners play ten
cognitive games with their dogs, following a strict protocol. The games are not
tests that dog pass or fail, but instruments that measure the cognitive strategy
each dog uses. Dognition games provide data on dog empathy, communication,
memory, cunning, and reasoning. Based on a dog’s strategy in each game, it can
be placed into one of nine Dognition Profiles.
Dogs are so good at reading our intentions, practically reading our mind,
that you probably can’t deceive your dog. Your dog, however, has no qualms about being deceptive [10].
According to early findings in Dognition, dogs most
bonded to their owners are most likely to have intelligent disobedience, such
as watching their owners closely enough to capitalize on a distracted moment to
steal food.
This style of citizen science may be the trickiest of type to implement
because owners can unconsciously cue their pets towards a particular decision.
In Dognition, to ensure that participants are aware of the mistakes to avoid
and sufficiently prepared for carrying out the experiments, they are required
to watch training videos.
In the third model of dog citizen science, researchers provide content and
participants assist in the steps necessary to interpret the meaning. For
example, in the Canid Howl Project [11], participants listen to howls of grey wolves, red wolves, coyotes, dingos,
and dogs and mark the howl spectrograms for further analyses. Marking
spectrograms is a massive, time-consuming task, ideal for divvying up into
kibbles and bits among online crowds. Also, if you have a recording of your
dog’s howl, you upload that to the database for analysis too.
In The Genius of Dogs: How dogs are smarter than you think
[12], by Brain Hare and
Vanessa Woods, they suggest that natural selection favored those individual
early dogs that were best able to figure out human intentions. Selection was
not necessarily favoring the most intelligent dogs, but those with strong
skills at social cognition. Through it all, dogs have been paying attention to
us and now they are better at understanding us than we are at understanding
them. No wonder we are the ones scooping up the poop. Maybe it was their master
plan since the dawn of time.
August 26 is World Dog Day. To celebrate, the next #CitSciChat will be
about citizen science involving companion dogs. I’m founder and moderator of
#CitSciChat and, along with our sponsor, SciStarter, we invite you to join the
conversation on Twitter this week at 2:00pm ET (7:00pm BST). If you are not a
Twitter user, you can follow the Twitter feed [13] on this page. In the Q&A format of the #CitSciChat, we’ll hear from
the following guest panelists:
Moderator: Caren Cooper @CoopSciScoop
Caren is the assistant director of the Biodiversity Research Lab at the
North Carolina Museum of Natural Sciences. She is an avian ecologist and relies
on citizen science to help communities use birds as indicators of environmental
health. She hosts monthly chat sessions about citizen science on Twitter.
Follow her at @CoopSciScoop
Links:
[1] http://www.hup.harvard.edu/catalog.php?isbn=9780674736764
[2] http://news.nationalgeographic.com/news/2015/03/150304-neanderthal-shipman-predmosti-wolf-dog-lionfish-jagger-pogo-ngbooktalk/
[3] https://www.psychologytoday.com/blog/canine-corner/201206/canine-empathy-your-dog-really-does-care-if-you-are-unhappy
[4] http://thebark.com/content/hmping
[5] http://www.sciencedirect.com/science/article/pii/S0376635714002551
[6] https://sites.google.com/site/dogcognitionlab/home
[7] http://www.journalvetbehavior.com/article/S1558-7878%2814%2900178-6/abstract
[8] http://blogs.scientificamerican.com/guest-blog/how-do-you-play-with-your-dog/
[9] http://scistarter.com/project/748-Dognition
[10] http://www.nytimes.com/2013/04/23/science/enlisting-a-virtual-pack-to-study-dog-minds.html
[11] http://scistarter.com/project/1033-Canid%20Howl%20Project
[12] http://www.goodreads.com/book/show/15721051-the-genius-of-dogs
[13] http://www.carencooper.com/citscichat.html
[14] https://www.dognition.com/brian-hare
[15] http://www.dogspies.com/Dog_Spies/Home.html
[2] http://news.nationalgeographic.com/news/2015/03/150304-neanderthal-shipman-predmosti-wolf-dog-lionfish-jagger-pogo-ngbooktalk/
[3] https://www.psychologytoday.com/blog/canine-corner/201206/canine-empathy-your-dog-really-does-care-if-you-are-unhappy
[4] http://thebark.com/content/hmping
[5] http://www.sciencedirect.com/science/article/pii/S0376635714002551
[6] https://sites.google.com/site/dogcognitionlab/home
[7] http://www.journalvetbehavior.com/article/S1558-7878%2814%2900178-6/abstract
[8] http://blogs.scientificamerican.com/guest-blog/how-do-you-play-with-your-dog/
[9] http://scistarter.com/project/748-Dognition
[10] http://www.nytimes.com/2013/04/23/science/enlisting-a-virtual-pack-to-study-dog-minds.html
[11] http://scistarter.com/project/1033-Canid%20Howl%20Project
[12] http://www.goodreads.com/book/show/15721051-the-genius-of-dogs
[13] http://www.carencooper.com/citscichat.html
[14] https://www.dognition.com/brian-hare
[15] http://www.dogspies.com/Dog_Spies/Home.html
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has always declared the wars; the subject class has always fought the battles.
The master class has had all to gain and nothing to lose, while the subject
class has had nothing to gain and everything to lose--especially their lives."
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