“There is little experimental evidence that any non-human species is capable of purposefully attempting to manipulate the psychological states of others deceptively (e.g., manipulating what another sees). We show here that chimpanzees, one of humans’ two closest primate relatives, sometimes attempt to actively conceal things from others. Specifically, when competing with a human in three novel tests, eight chimpanzees, from their first trials, chose to approach a contested food item via a route hidden from the human’s view (sometimes using a circuitous path to do so). These findings not only corroborate previous work showing that chimpanzees know what others can and cannot see, but also suggest that when competing for food chimpanzees are skillful at manipulating, to their own advantage, whether others can or cannot see them.”
Photo: flickr/Tambako the Jaguar
Discoblog: NCBI ROFL: I sure hope these monkeys don’t live in glass houses!
Discoblog: NCBI ROFL: New plan for health care reform: train monkeys to perform endoscopies.
Discoblog: NCBI ROFL: Sex differences in rhesus monkey toy preferences parallel those of children.
NCBI ROFL. Real articles. Funny subjects.
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