John Leguizamo, who lent his voice to Sid, a ground sloth, revealed the news in an interview with NPR. "We're about to do Ice ...

also called the ice age. Climate warming and hunting by people drove the ground-dwelling sloths to extinction around 10,000 years ago, and some of their remains are preserved in cave shelters ...

Robin Bicknell, Director The Nature of Things documentary, Ice Bridge tells the story of ... jeffersonii (North American Jefferson Ground Sloth), the Panthera leo atrox (American Cave Lion ...