A two-year biology study reveals that chimpanzees warn fellow chimps about unseen dangers to their well-being. This finding probably explains the recent increase in anti-smoking ads.
On a basic instinctive level, the chimps seem to partly understand each other’s intentions. It’s why they are better than humans at dodging hand-flung poop.
Of course, the best way for a chimp to get clear warning messages from another, pay him a couple of bananas in advance, for his trouble.
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