For a long time, scientists believed the first humans to arrive in the Americas soon killed off these giant ground sloths ...
For a long time, scientists believed the first humans to arrive in the Americas soon killed off these giant ground sloths ...
Nearly 12,600 years ago, during the Late Pleistocene era, a group of humans hunted and killed a giant ground sloth in Argentina, then left the animal's bones behind, along with their butchering knife.