Four of these were species of ground sloth, three of which unknown to science.. Sloths are notable for their low energy levels and slow, deliberate movements (hence their name). They are part of a ...

Sloths were not always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge — up to four tonnes — and when startled, they brandished immense claws. For a long time ...

Fossilized teeth from two ancient megafauna suggest they roamed Brazil 3,500 years ago. The find “opens the door to rewrite South American history.” ...

Classified as critically endangered and believed to have a rapidly declining population and habitat area, pygmy three-toed sloths (Bradypus pygmaeus) are native exclusively to the island of Escudo de ...

That was when it met this big dog. When this sloth sensed danger, it froze. Suzi was fearful, as she remarks how 'dogs often attack sloths'. Fortunately, this particular dog did no more than sniff.