Study finds capuchin monkeys produce sharp stone flakes similar to tools

(Fundação de Amparo à Pesquisa do Estado de São Paulo) In a study published in Nature, researchers describe that rock fragments produced unintentionally today by primates in Serra da Capivara National Park in Brazil resemble tools made deliberately 2.6 million years ago by ancestors of humans.

from EurekAlert! - Archaeology http://ift.tt/2hvh3XT