Human Beings
Have We Reached Peak Human?
French researchers conclude we have reached the pinnacle of our physical ability.
Is There a Downside to Human Connection?
Overly-connected groups may stifle innovation, new experiments suggest.
The First Americans
Until recently, the reigning theory on who the first Homo sapiens in North America were pointed to the Clovis people, evidence of whose culture was discovered in the American Southwest. That theory has been powerfully challenged by, among others, Meadowcroft, an archaeological dig in western Pennsylvania that began in the 1970s.