The extinct giant ground sloths were some of the only mammals that had digestive systems large enough to process the huge avocado seeds whole. They feasted on the fruit and then dispersed the ...

Matheus Fernandes In a dusty rock shelter in Santa Elina, Brazil, two layers of giant ground sloth bones have been swallowed into the earth. The oldest sloth fossils in the deposit date back ...

Sloths are very good swimmers. A group of sloths is called a snuggle. Sloths have been around before dinosaurs -- over 65 million years. Giant sloths the size of elephants used to exist ...

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 ...