Extinction troubled us long before we had a name for it. The original mascot for the loss of species, even before the concept was understood, was the dodo. The bird — fat and flightless, found by 17th ...

Tasmanian tiger (thylacine), and the dodo - meaning five species in total could be brought back to life. But now they are turning their focus to the giant Ice Age bear - also known as Arctodus ...

Back when the Earth was being overrun by glaciers, and animals were scurrying to save themselves from the upcoming Ice Age, a sloth named Sid, a woolly mammoth named Manny, and a saber-toothed ...