Early humans used animal bones to craft tools — more than a million years earlier than scientists previously thought, according to new research published this week. A group of researchers from the ...

Recent discoveries have suggested that tool-making, an indicator of intelligence, was practiced by pre-human species millions of years prior to the evolution of Homo sapiens. This revelation has the ...

At a site in Kenya, archaeologists recently unearthed layer upon layer of stone stools from deposits that span 300,000 years, and include a period of intense environmental upheaval. The oldest tools ...