Researchers observed chimpanzees in the forests of Bossou, Guinea, noting that these primates use two tools to crack nuts: a ...

Video from 2012 showing the individual variation in nut-cracking efficiency in the Bossou chimpanzees. The first cracker is Peley, a 14-year-old adult male who successfully cracks two oil palm nuts.

Chimpanzees perched in the lush forests of West Africa, cracking nuts with carefully selected stones, might not just be ...

Study finds some chimps twice as skilled at nut-cracking, highlighting 25 years of research on intelligence and tool use.