Roger Williams Zoo just welcomed its tiniest new tenant: a baby two-toed sloth. On Oct. 11, the new sloth was born at the zoo to mother, Fiona and dad, Riley. It is not known yet whether the sloth is ...

Long before today's tree-dwelling sloths became icons of leisure, their ancestors roamed the ground as colossal herbivores.

In a grim study, a team of nearly 50 researchers concludes that extreme ocean heat killed off two crucial coral species that ...

If patience were a superpower, sloths would wear the crown. These famously slow-moving creatures spend their days dangling ...

Imagine a sloth. You probably picture a medium-sized, tree-dwelling creature hanging from a branch. Today's sloths—commonly ...

New research led by UNSW Sydney paleontologists challenges the idea that Indigenous Australians hunted Australia's megafauna to extinction, suggesting instead they were fossil collectors.

Imagine a sloth. You probably picture a medium-size, tree-dwelling creature hanging from a branch. Today's sloths - commonly featured on children's ...

It's no secret that certain species of animal are under threat on our planet Wildlife photographers have captured poignant ...

Largely outshone by fossils of horses, the earliest camels are getting another look from scientists determined to sort out ...

Prioritizing which animals and plants to help is driven mostly by whether we like them or not. Some experts say that may not ...

On Saturday’s evidence it looks like Ross King and Thomas Skinner will be on the judges’ altar, with the other most-endangered celebrity – former England rugby captain Chris Robshaw – showing enough ...