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

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

Prior research has shown that some chimpanzees have learned to use rocks to crack open nuts, allowing them to eat the insides. In this new effort, the researchers wondered if there are differing ...

A study of tool use among chimps, our closest living relatives, has cast light on the human evolutionary journey.

Some chimpanzees appear to be more efficient at using tools to crack nuts than others within their groups. This efficiency could also give them an evolutionary advantage, since better nutcracking ...

An international team of paleobiologists, anthropologists and behavioral scientists has found that the process used by modern ...

A male individual cracking nuts using stones. Credit: Dora Biro. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing ...

A male individual cracking nuts using stones. Credit: Dora Biro. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing ...

A study published in the Journal of Human Evolution found that chimpanzees select harder stones for nut-cracking tasks, ...