Three genetically engineered wolves that may resemble extinct dire wolves are trotting, sleeping and howling in an undisclosed secure location in the U.S., according to the company that aims to bring ...

On the left is a white wolf pup created by Colossal Biosciences that it says is a de-extincted dire wolf. On the right is a depiction of a dire wolf by a National Park Service artist. Colossal ...

Dire wolves Romulus and Remus next to each other in the snow at five months old. Credit: Colossal Laboratories and Biosciences The sci-fi fairytale of de-extinction may become a reality. Colossal ...

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 ...

EDITOR’S NOTE: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

This undated photo provided by Colossal Biosciences shows Romulus and Remus, both 3-months old and genetically engineered with similarities to the extinct dire wolf. This undated photo provided by ...