Its original owner is a giant ground sloth that lived during the early Holocene era, soon after the retreat of the 3,000-foot-thick Cordilleran ice sheet. Its Puget Lobe, extending from Canada to ...

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 ...

Fossils found by workers digging a tunnel for a new railway line in Los Angeles have been identified as the remains of a giant sloth and a bison. The "amazing discovery" of a sloth's hip bone and ...