Most impressively, the animals even accounted for clues that undermined earlier evidence. If they heard something bouncing around inside box 1, they would assume, at first, that it was an apple—but ...
A groundbreaking study published in Science reveals that chimpanzees can rationally revise their beliefs much like humans.
The authors conclude: “Chimpanzees did not attribute a fixed value to each type of evidence; instead, they weighed the ...
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