But the teeth of giant ground sloths lack enamel, the highly inorganic and hard outer layer on most animal teeth – including our own. Instead, sloth teeth are made primarily of dentin, a more porous ...

By studying antelope fossils, researchers can revisit long-standing questions about how the Cradle of Humankind’s environment ...

It's always nice to throw in two of my favorite things on a video. In this case, really wild weather, and fossil hunting!

Hydrogen peroxide is the star of the show in this whitening kit, which includes pre-filled treatment trays made for easy-peasy brightening. This kit rarely goes on sale — in fact, our price trackers ...

Imagine a sloth. You probably picture a medium-sized, tree-dwelling creature hanging from a branch. Today's sloths—commonly ...