Scientists have sounded the alarm after a potentially dangerous virus originating in sloths was discovered in Europe for the first time following two human deaths in Brazil. Figures published by ...

The sloth in the video above appears to be an adult pale-throated three-toed sloth, or Bradypus tridactylus. Their native habitat is the canopies of tropical rainforests in Central and South America.

a sloth actually can't see anything 'cause it's too bright. If you can't see where you're going, you can't run around because you're going to fall out the tree. Narrator: Moving slowly may sound ...

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 ...