A study published in the Journal of Human Evolution found that chimpanzees select harder stones for nut-cracking tasks, similar to early human ancestors. This behavior suggests deep evolutionary ...

Chimpanzees use rocks as tools for cracking nuts Stone selection by chimps mirrors ancient human ancestor techniques Generational learning observed in chimpanzee tool ...

A chimpanzee in Guinea, cracking oil palm nuts using a hammer and anvil. Pic: Kathelijne Koops/Nature Human Behaviour Chimpanzees perched in the lush forests of West Africa, cracking nuts with ...

An international study reveals how early humans, as far back as 1.5 million years ago, deliberately selected specific stones for their tools in the Ethiopian Highlands. The findings, published in ...

A cast of the skull of Homo floresiensis, one of the hominin species analyzed in the latest study. Credit: The Duckworth Laboratory, University of Cambridge. Perched from atop our ivory tower, it ...

Humans are not unique in using tools. But human tool use differs from that known to occur in nonhumans in being very frequent, spontaneous, and diversified. So a fundamental issue is, what are the ...

Chinese archaeologists have made new discoveries at the ancient sites in Nihewan Basin, North China's Hebei Province, revealing East Asia's first-ever evidence of the "heat-treated stone-tool ...

The long-held theory of human evolution says that modern humans originated in Africa and then migrated to other parts of the world. However, that “out of Africa” model is being challenged by a ...