Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are ...

Advancing science may make it possible to bring back extinct species like the dire wolf—but should it? CU Boulder environmental studies and philosophy Professor Ben Hale says the answer is complicated ...

A version of the dodo bird (Raphus cucullatus) could make a return someday soon. Colossal Biosciences announced this week several milestones in its quest to bring the extinct species back to life. On ...