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

Early last year, keepers at Chester Zoo first spotted that 25-year-old Rico, a two-toed sloth, had swellings on the side of ...

Mylodon darwinii is the scientific name for a species of extinct giant ground sloth. On finding the specimen ... including the front of the skull and teeth. The wide muzzle of G. robustum suggests it ...

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 ...