Scientists found this therizinosaur had only two fingers on each hand, with 30-centimeter claws used to grasp branches and ...

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

Nearly 27,000 years ago, a giant ground sloth traveled across a barren, arid landscape in what is now Belize, munching on grassy vegetation and searching for water. A nearby sinkhole may have ...