Eideard

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Posts Tagged ‘cooperations

Tricks and trust that only work for humans and dogs

with 3 comments

puppies_jail_07

Brian Hare, assistant professor of evolutionary anthropology at Duke University, holds out a dog biscuit.

“Henry!” he says. Henry is a big black schnauzer-poodle mix–a schnoodle, in the words of his owner, Tracy Kivell, another Duke anthropologist. Kivell holds on to Henry’s collar so that he can only gaze at the biscuit.

“You got it?” Hare asks Henry. Hare then steps back until he’s standing between a pair of inverted plastic cups on the floor. He quickly puts the hand holding the biscuit under one cup, then the other, and holds up both empty hands. Hare could run a very profitable shell game. No one in the room–neither dog nor human–can tell which cup hides the biscuit.

Henry could find the biscuit by sniffing the cups or knocking them over. But Hare does not plan to let him have it so easy. Instead, he simply points at the cup on the right. Henry looks at Hare’s hand and follows the pointed finger. Kivell then releases the leash, and Henry walks over to the cup that Hare is pointing to. Hare lifts it to reveal the biscuit reward.

Henry the schnoodle just did a remarkable thing. Understanding a pointed finger may seem easy, but consider this: while humans and canines can do it naturally, no other known species in the animal kingdom can.

Har! I won’t even suggest the political implications of such a study.

Written by eideard

September 23, 2009 at 6:00 pm

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