Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Sloths are cute. Take this video of baby sloths being washed: Until ...

While humans wouldn’t be very happy to find that organisms were growing on their skin, particularly fungi, algae, and insects, it works out pretty well for sloths. Sloths may be hosting entire ...

Zebras, rhinos, and capybaras often have their pesky ticks and other parasites pecked off by the hungry birdies perched on their backs. Now, for the first time, researchers have observed brown jays ...

Why does a sloth poop on the ground when it spends the bulk of its time high in the trees? The behavior—oddly fastidious for the languorous creatures—is a hallmark of tree sloths: sloths chill amid ...

New research painted a more accurate picture of the megafauna that spread widely around the Americas before they went extinct. By Jeanne Timmons Ground sloths emerged in South America tens of million ...

Here’s a memorable encounter between David Attenborough and a three-toed sloth, as shown in Life of Mammals. Sloths normally spend their lives hanging from high branches, but this one ambles down to ...