From: NPR
Yawning May Promote Social Bonding Even Between Dogs And Humans
May 16, 2017
NPR:
Bears do it; bats do it. So do guinea pigs, dogs and humans. They all yawn. It’s a common animal behavior, but one that is something of a mystery.
There’s still no consensus on the purpose of a yawn, says Robert Provine, professor of psychology and neuroscience at the University of Maryland, Baltimore County. Provine has studied what he calls “yawn science” since the early 1980s, and he’s published dozens of research articles on it. He says the simple yawn is not so simple.
“Yawning may have the dubious distinction of being the least understood common human behavior,” Provine says.
Read the whole story: NPR
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