“Modern humans were essentially like waves crashing on a beach, slowly but steadily eroding the beach away.” With this vivid simile, Princeton geneticist Joshua Akey describes a process that, until ...

The oldest sediment DNA discovered so far comes from Greenland and is 2 million years old.

Analysis of ancient proteins may fill in the gaps of human evolution left by the decomposition of DNA. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...