The oldest known sloth in the world just turned 50 years old and she lives at a zoo in Germany. We suspect that wild sloths actually live for much longer than this, but only time will tell.

Different sloth groups can be easily identified by the number of long, curved claws on their forelimbs. The two-toed sloths, as the name suggests, have two claws on their front limbs, while the ...

Leisurely by nature, the sloth’s slowness is just one way this amazing animal is built to survive. Here’s a look at some other fascinating facts about these tired little tree-dwellers!

The sloth is the world's slowest mammal, so sedentary that algae grows on its furry coat. The plant gives it a greenish tint that is useful camouflage in the trees of its Central and South ...

The Hoffman's two-toed sloth is one of the world's slowest mammals—so sedentary that algae grows on its furry coat. The plant gives it a greenish tint that is useful camouflage in the trees of ...

So, they don't need to eat a lot. A sloth can take up to 50 days to digest a meal. They have the slowest metabolism of any non-hibernating mammal. Since they're rarely desperate for another meal ...