Among the greatest mysteries of the tropical rainforest are the pooping habits of sloths. Really. Those furry, slow-moving tree dwellers almost never descend from the safety of the tree tops—except ...

Meet the world’s first sloth detective dog, Keysha. Meet the world’s first sloth detective dog, Keysha —trained to sniff out sloth poop and empower the world’s first ever sloth census!

It’s not considered polite to talk about it, but we all do it. Some of us are in and out so quickly that nobody would even know we were gone. Others quietly get up from the sofa, tuck a newspaper ...

Three-toed sloths descend from the canopy about once a week to defecate, risking predation during one of the most dangerous moments of their lives. A single sloth bowel movement can account for up to ...

Scientists have analyzed ancient DNA and compared more than 400 fossils from 17 natural history museums to figure out how and why extinct sloths got so big. Most of us are familiar sloths, the ...