Developmental delay may explain behaviour of easygoing ape species

New research suggests that evolutionary changes in cognitive development underlie the extensive social and behavioural differences that exist between two closely related species of great apes. The study, published online on January 28th in Current Biology, a Cell Press publication, enhances our understanding of our two closest living relatives, chimpanzees and the lesser-known bonobos, and may provide key insight into human evolution...

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