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February 24 2013

Monkeying Around With Puzzles Makes Chimps Happy


Chimpanzees don't need to be rewarded for playing with brainteasers. Like humans with a crossword puzzle, they're motivated by the challenge alone, new research finds.

For the study, published today (Feb. 23) in the American Journal of Primatology, researchers followed six chimpanzees at the Zoological Society of London's Whipsnade Zoo. Three of the chimps are half-brothers (Phil, Grant and Elvis), and their family group includes another male and two females.

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