Sloths have a reputation for being sluggish and slow, spending most of their lives dozing in trees, but a new study suggests ...

Most people are familiar with modern sloths — slow-moving, tree-dwelling mammals that digest food slowly and descend only ...

The larger sloths didn’t do much tree climbing, at risk of falling to their deaths. Instead, they survived by being ...

Explore how ancient sloths evolved in size, from small climbers to massive ground dwellers, shaped by shifting climates and ...

While conducting an environmental review for Loop 88 in Lubbock, Texas, TxDOT found what experts believe to be the tooth of a ...

A new fossil and DNA analysis traces how dozens of sloth species responded to climate shifts and humans. Just two small tree-dwelling sloths remain today.

The moderately sized Shasta ground sloth favorited small, natural caves bored by wind and water into the cliffsides of the Grand Canyon, like the alveoli of a gigantic, geologic lung. These also ...

The study, titled "Sloth Metabolism May Make Survival Untenable Under Climate Change Scenarios," investigates how two-fingered sloths (Choloepus hoffmanni), living in both highland and lowland ...

A family of sloths take their food truck to the big city in this animated movie directed by Ricard Cussó and Tania Vincent. By Natalia Winkelman When you purchase a ticket for an independently ...