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 ...

Fans of the movie franchise Zootopia know that sloths make the perfect DMV (Department of Mammal Vehicles) workers.

Quick Take With sloths, the females are the ones responsible for mating calls. Three-toed sloth mating calls are often ...

Look closely up in the trees of a shade-grown cacao plantation in eastern Costa Rica, and you’ll see an array of small furry faces peering back at you. Those are three-toed sloths that make their ...

Add Yahoo as a preferred source to see more of our stories on Google. Three-toed sloth mating calls are often described as high-pitched screams or shrill whistles. These calls travel long distances ...

Sloths always have a slight smile on their lips, making them appear friendly and cute. These incredibly slow tree dwellers ...

Montgomery, G. Gene and Sunquist, M. E. 1972. "Resting respiration rates of free-living three-toed sloths." Mammalia, 36, (3) 530–532.

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Everybody loves sloths, and whenever we talk ...