Humans reached Argentina by 20,000 years ago — and they may have survived by eating giant armadillos, study suggests

A 3D rendering of three paleolithic humans butchering a mid-size mammal on a grassy area by a tree-lined river.

Ancient humans may have butchered and eaten a giant armadillo-like creature around 20,000 years ago in what is now Argentina, a new study finds. 

The discovery of the butchered bones supports a growing body of evidence that people spread throughout the Americas much earlier than previously assumed.