This sloth appeared resolute in its desire to embrace the surface, seemingly having discovered an ideal habitat. A shared ...

Take a peek at the world's slowest mammal, so sedentary that algae grows on its furry coat. Read on to learn about life in the slow lane.

Get to know the world's slowest mammal. Learn what it does all day in the treetops of Central and South America.

Although it sounds like a grade-B science fiction movie, fossils show that our ancestors once hunted and fought giant ground sloths. For the first time, scientists have uncovered fossilized footprints ...

Giant sloths with razor-sharp claws and as large as Asian bull elephants once roamed the Earth, snacking on leaves at the tops of trees with a prehensile tongue. Now, scientists have figured out why ...

Sloths are slow-moving, arboreal mammals living in Central and South America. The two types of sloths are the two-toed sloth and the three-toed sloth. Three-toed sloths are strictly herbivorous, while ...