The human ability to teach and our use of complex tools may have evolved together, according to new research. The improvement of technologies across generations, known as "cumulative cultural ...

A new study finds that chimpanzees that use a multi-step process and complex tools to gather termites are more likely to share tools with novices. The study helps illuminate chimpanzees' capacity for ...

Nov. 18 (UPI) --The ability to sustain technological improvement across multiple generations, a phenomenon called "cumulative cultural evolution," was key to the success of the human species, but its ...