Walking on two legs has long been considered a milestone in human evolution and one of our most defining characteristics. Until now, researchers assumed that the first humans originated in Africa and ...

New research challenges long-standing assumptions about human evolution, revealing that natural selection has been more ...

Mosquitoes haven’t always had a taste for human blood — partly because the tiny yet dangerous insects have been around a lot longer than humans. Pinpointing when mosquitoes shifted their preference to ...

This volume is based on the Arthur M. Sackler Colloquium of the National Academy of Sciences, “The Human Condition,” held December 11-12, 2009, at the Arnold and Mabel Beckman Center of the National ...