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 ...

A biotechnology company whose goal is to bring back the wooly mammoth says its recent small step is big news. Colossal ...

What the dodo symbolizes has changed over time ... Humans had been causing extinctions at least since the Ice Age. Polynesian expansion, particularly into New Zealand, was responsible for large ...

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 ...

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 ...