When we think of the cutest animals of all time, sloths are somewhere near the top of the list. Heck, they might be number one. Have you ever seen a baby sloth? Okay, that's it. Baby sloths are the ...

This picture of a smiling sloth hanging out in a tree sure has to be a contender for the best selfie ever. A lucky tourist spotted a sloth chilling out up a tree and decided to use his selfie stick to ...

WASHINGTON— The U.S. Fish and Wildlife Service today proposed protecting the pygmy three-toed sloth under the Endangered Species Act. The proposal responds to a 2013 petition filed after officials ...

The Smithsonian's National Zoo is home to three Linnaeus's two-toed sloths and shares some sloth basics, but here are three lesser-known sloth facts. 1. The Smithsonian has a collection of fossilized ...

The researchers found that three-toed sloths can harbor more phoretic moths than their two-toed counterparts because of greater concentrations of inorganic nitrogen and higher algal biomass in their ...