Humans, unlike most other species, have a knack for making tools.Six million years ago, our apelike ancestors probably smashed nuts with rocks or caught ...

Othniel Charles Marsh & Edward Drinker Cope.Othniel Charles Marsh and Edward Drinker Cope: From friends to enemiesThe participants in this unusual ...

How did human intelligence evolve? Anthropologists have studied this question for decades by looking at tools found in archaeological digs, evidence of the ...