The Cretaceous-Tertiary Extinction killed off the dinosaurs 66 million years ago. Credit: Getty Images by Mike Lyvers A biosphere in crisis There is no question that Earth is losing species fast.

Let’s take a look at them! Mesonychid Mesonychid is a perfect example of an animal similar to the Andrewsarchus. However, it is now an extinct carnivorous ungulate as well that lived between 66 ...

With much controversy swirling around Colossal's proxy dire wolves, we spoke with the company's CEO to find out how these animals were created and what so-called de-extinction technology could ...

A version of this article appears in print on , Section SR, Page 6 of the New York edition with the headline: Come With Me If You Want to Survive An Age of Extinction.

Over the past week, the media have been inundated with news of the "de-extinction" of the dire wolf (Aenocyon dirus)—a species that went extinct about 13,000 years ago.

The once-extinct dire wolf species, popularized in HBO's "Game of Thrones," has been brought back. But were Colossal Biosciences scientists behind the de-extinction so preoccupied with whether or ...

A Dallas-based company says that it has resurrected the dire wolf, an animal that has been extinct for roughly 13,000 years and is more known today for its presence on “Game of Thrones.” ...

The animal made popular by the hit HBO series "Game of Thrones" could make a comeback from extinction after a Dallas-based biotech company said it has successfully birthed three dire wolf puppies ...

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 ...

Animalia The dodo bird is extinct. This scientist says she can bring it back. The company she works for is betting millions it can realize a once-far-fetched idea of “de-extinction.” ...

In South America, which is home to the Amazon Rainforest, 3,356 out of the 13,668 assessed tree species are at risk of extinction due to deforestation for crop farming and livestock ranching.

Life De-extinction company claims it has nearly complete thylacine genome Colossal, a US firm that is aiming to revive lost species such as the woolly mammoth, says it now has a near-complete ...