Trilobites: Monkeys Can Make Stone Tools, but They Don’t Use Them Researchers found capuchin monkeys in Brazil that bang stones together, producing flakes that look similar to early human tools. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Nonfiction: On the Front Lines of InfertilityDengue fever and Zika virus breakthrough: Britain develops new tool to predict outbreaksPruitt’s Successor Wants Rollbacks, Too. And He Wants Them to Stick.Eclipse 2018: When is the next lunar eclipse over the UK? Blood Moon hidden by cloudsEclipse 2018 in pictures: Best photos of the Blood MoonPolar Bear Shot and Killed After Attacking Cruise Ship Guard