"They call them the sloths of the Cretaceous period," said University of Calgary paleontologist Darla Zelenitsky. "Totally ...

On February 8, the San Diego Zoo celebrated the birth of a new baby sloth. The adorable little guy, born to sloth mama Xena, ...

Thanks to rare extra vertebrae in its neck, the three-fingered sloth can turn its head 270 degrees, which allows it to smell incoming predators from almost any direction, and that's especially ...

To mark the BBC Radio 4 documentary The Power of Sloth, zoologist and author of Life in the Sloth Lane, Lucy Cooke, unleashes her inner sloth to discover why being lazy could actually be the ...