Defecating exposes sloths to predators on the jungle floor. An unexpected ally benefits, and returns the favor.

Sloths might move at a glacial pace, but their biology is anything but boring. In this captivating exploration of one of nature’s most unusual creatures, we dive deep into the insane science behind ...

Sloths operate as one-third of a partnership with moths and algae, which both live in the mammal’s thick fur (along with fungi and ticks and mites, oh my). “Sloths are these fascinating ...

Sloths are good swimmers, but they struggle to walk on the ground. Photo Credit: Pexels Their thick fur is home to algae, fungi, insects, and bacteria- all part of a tiny jungle on their backs.

Dolphins can hold their breath for about 10 minutes, while sloths can do so for up to 40 minutes. They have a slow metabolism ...

From their unique metabolic processes to their symbiotic relationships with algae, sloths have evolved remarkable traits that have allowed them to thrive in their arboreal habitats for millions of ...

The sloth family tree once sported a dizzying array of branches, body sizes and lifestyles, from small and limber tree climbers to lumbering bear-sized landlubbers. Why sloth body size was once so ...

I named him Leonard. I’m not sure why. He was the only sloth in the display of “Warmies” stuffed animals near the checkout at ...

Today, sloths are slow-moving, tree-dwelling creatures that live in Central and South America and can grow up to 2.5 feet long. Thousands of years ago, however, some sloths walked along the ground ...

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 ...