Study suggests humans, apes and monkeys all expect something in return for generosity
Wednesday, August 14, 2013 - 09:00
in Biology & Nature
(Phys.org) —A pair of researchers at the University of California, Santa Barbara has concluded that when it comes to sharing, there is little difference between human and non-human primates—all expect something in return. In their paper published in Proceedings of the Royal Society B, anthropologists Adrian Jaeggi and Michael Gurven describe their analysis of 32 separate studies on sharing, and found that all primates appear to have an ulterior motive when they share food with others.