New research painted a more accurate picture of the megafauna that spread widely around the Americas before they went extinct.

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 ...

Sloths are known for being incredibly slow. In fact, they are the slowest mammals in the world. Although they can stand, they cannot walk. So, on the ground, they move by digging in with their ...