Saturday, May 24, 2014

In Dogs’ Play, Researchers See Honesty & Deceit, Perhaps Something Like Morality

But when Bekoff began looking at videos of dogs romping in super slow motion, he began to realize that there was more going on in the canine mind than science had acknowledged. He noticed the “play bow,” for example. What’s more, he found that canines “role-reverse” or “self-handicap” during play. When a big dog played with a smaller one, for example, the big dog often rolled on her back to give the smaller dog an advantage, and she allowed the other dog to jump on her far more often than she jumped on him. Bekoff also spotted a number of other blink-and-you’d-miss-them behaviors, such as a sudden shift in the eyes — a squint that can mean “you’re playing too rough” — and a particular wag of the tail that says, “I’m open to be approached.” Humping a playmate during a romp, meanwhile, was often an invitation to nearby dogs to come join the fun. Such signals are important during play; without them, a giddy tussle can quickly turn into a vicious fight.

In the wild, coyotes ostracize pack members that don’t play by the rules. Something similar happens in dog parks: If three dogs are playing and one bites or tackles too hard, the other two are likely to give him the cold shoulder and stop playing with him, Bekoff says. Such behavior, he says, suggests that dogs are capable of morality, a mind-set once thought to be uniquely human.

Even morality hints at something deeper, however. To enforce moral conduct, dogs must be able to experience a spectrum of emotions, from joy to indignation, guilt to jealousy. They must also be able to read these emotions in others, distinguishing accident from intent, honesty from deceit. And indeed, recent studies by other scientists have shown evidence of these abilities (confirming what many dog owners already feel about their pets).

Other studies have revealed that dogs yawn when they see humans yawning and that they nuzzle and lick people who are crying; scientists consider both behaviors displays of empathy, a rarely documented trait in the animal kingdom. Dogs have even been shown to be pessimistic: When a group of canines in one study learned that a bowl placed on one side of the room contained a treat and a bowl on the other side contained nothing, some of the dogs just sat there when the empty bowl was placed in the center of the room; they figured it was empty and didn’t waste their time. These same dogs evinced what researchers said was a similar pessimistic attitude when their masters left for work: They were more likely to howl and tear up the couch when their owner disappeared, possibly because they didn’t believe their master would return.

Bekoff’s recent work suggests another remarkable canine skill: the ability to know what another animal is thinking — a so-called “theory of mind.” Dogs seem to display a rudimentary form of this skill during play. He has noticed, for example, that one dog won’t begin trying to play with another dog until he has her attention. To get her to notice, he may nip the other dog or run into her field of view. That, Bekoff says, shows that the one wanting to play knows that she’s not paying attention to him. Though this may seem like a simple skill, it’s incredibly important to our species. Without it, we can have a hard time learning or interacting with the world around us.


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