Broken Bones Stir Debate

Sapiens

A controversial new study places our human ancestors on the North American continent 130,000 years ago—far, far earlier than previously thought

In the fall of 1992, a construction crew made an unusual discovery during a freeway expansion in a coastal area of San Diego County. Buried deep within the silty soil were the bones, tusks, and molars of a mastodon, an elephant-like mammal that once lived in North America. … Read the rest