A giant ground sloth tooth and other Ice Age era animal remains were discovered during a road project in Lubbock, Texas. The remains, estimated to be 18,000-36,000 years old, are being preserved and ...

Imagine a sloth. You probably picture a medium-sized, tree-dwelling creature hanging from a branch. Today's sloths—commonly featured on children's backpacks, stationery and lunch boxes—are slow-moving ...