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

Previous research indicated that kangaroos weighing more than about 350 pounds would rupture their ankle tendons if they tried to hop. The largest of the Ice Age kangaroos, Procoptodon goliah, which ...

No other animal is as inexorably linked with extinction as the dodo, an odd-looking flightless bird that lived on the island of Mauritius in the Indian Ocean until the late 17th century. The arrival ...

Few people know that the Zebra had a close relative, native to South Africa, that went extinct in the late 1800s. Here’s its story. Countless species have come and gone in the short history of life on ...

The curious minds at What If explore the top five extinct creatures still imagined today, revealing how their legacies continue to inspire fear and fascination.

The history of the Earth spans about 4.5 billion years, during which countless creatures have appeared and gone extinct thanks to evolution. The only evidence we have that they existed is their ...

The released birds are the closest living relatives of the extinct Arabian ostrich. The flightless animals' return is part of a broader "rewilding" effort at a huge nature reserve ...

"From the frozen tundra of Siberia to the cutting-edge genetics labs of Harvard University, a group of young scientists--under the guidance of Dr. George Church, the most brilliant geneticist of our ...

Researchers in the Czech Republic are celebrating the birth of four rare Barbary lion cubs — three females and one male — marking a significant boost for a subspecies that has been extinct in the wild ...