New primate behavior study: perceiving kinetic energy

“Our study raises the possibility that perceptual processes differ between humans and other primates in ways consequential for flaking stones,” Mangalam said.

The full study is available at http://rsbl.royalsocietypublishing.org/content/14/1/20170587

Image: A wild bearded capuchin monkey is striking an intact piaçava nut with a quartzite stone hammer (Credit: Dorothy M. Fragaszy).