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 ...

Huge tunnels under southern Brazil and northern Argentina were potentially made by giant, Ice Age sloths for refuge and rest ...

For a listing and recovery biologist, it was just a regular day. United States Fish and Wildlife Service's Luke Pearson was recently doing field research in Northeast Mississippi on a species of ...

Ancient sloths lived in trees, on mountains, in deserts, boreal forests and open savannahs. These differences in habitat are primarily what drove the wide difference in size between sloth species. But ...

This uplifting post from discover.animal shows some good Samaritans helping a lucky sloth make its way across traffic and into the forest. Sloths are typically docile and are rarely a danger to people ...

Sloths are known for their slow and sleepy nature. These cute mammals, which spend most of their time upside down, can be found in the trees of South America and Central America. These mellow-looking ...