Monkey-Made Nut Processing Site Found

Evidence suggests monkeys at the Brazil site have been using tools there to extract cashews for 700 years.

Published On 07/11/2016
12:01 PM EDT
Photo: A capuchin cashew-processing stone covered with residue from the nuts. Credit: Michael Haslam
Photo: Researchers Lydia Luncz and Tiago Falótico, who is standing under a cashew tree. Both are at the study site, Serra da Capivara National Park in northeast Brazil. Credit: Michael Haslam