It's not cute, but it does tell us a lot about primate cognition.
There are many members of the animal kingdom that rival our own wits.
A Chimpanzee retirement community
But there are good reasons why humans have longer nasal passages than their relatives
Chimps with many friends have a more diverse microbiome, which could help ward off disease
All remaining chimpanzees will be retired
Findings could tell us how our ancestors learned to cook, too
The battle between ape and machine rages on
They're better than fireworks--and last longer, too.
And the sensitivity to contagious yawns develops as they mature, as it does in humans.
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