The fossil discovered at Sea-Tac Airport is at the Burke Museum, and named for the man who first came across it. Nearly 60% ...

Thaís Pansani holds a giant sloth rib bone from central Brazil dated to about 13,000 to 15,000 years ago, which is thought to be burned by human-made fire, in the Smithsonian's National Taphonomy ...

Some of the most tantalizing clues come from an archaeological site in central Brazil, called Santa Elina, where bones of giant ground sloths show signs of being manipulated by humans. Sloths like ...

For a long time, scientists believed the first humans to arrive in the Americas soon killed off these giant ground sloths through hunting, along with many other massive animals like mastodons ...

The extinct giant ground sloths were some of the only mammals that had digestive systems large enough to process the huge avocado seeds whole. They feasted on the fruit and then dispersed the ...

For a long time, scientists believed the first humans to arrive in the Americas soon killed off these giant ground sloths through hunting, along with many other massive animals like mastodons ...

Unlike now, most extinct sloths lived on the ground and some were many times larger than modern tree sloths. Mylodon darwinii is the scientific name for a species of extinct giant ground sloth. On ...