Imagine early humans meticulously crafting stone tools for nearly 300,000 years, all while contending with recurring ...

Cumulative culture -- the accumulation of technological modifications and improvements over generations -- allowed humans to adapt to a diversity of environments and challenges. But, it is unclear ...

One hundred years ago, a substitute teacher in Dayton, Tenn., was charged with the crime of teaching Charles Darwin's theory of evolution by natural selection. His name was John Scopes. At the time, ...