Researchers have discovered an ancient moth-like sea predator in a treasure trove of museum fossils in Canada. The ...

Knife-toothed reptiles called sebecids went extinct on the mainland 10 million years ago. New fossil evidence puts them on an island 4 million years ago.

Scientists still don't know exactly why Denisovans went extinct. "We have so little archaeological and fossil information about Denisovans that we can only speculate as to why they disappeared ...

Scientists have discovered that the long-extinct megalodon ... only warm-blooded marine animals. Others include aquatic mammals such as whales, dolphins, seals, sea lions, walruses and manatees.

There are so many animals that have gone extinct through the ages that we’re choosing to focus just on creatures that went extinct relatively recently: from 1800 onward. So even though we’ll ...

Paleontologists have thought the species went extinct about 11 million years ago. Instead, the creature that some describe as a cross between a greyhound and a crocodile was just biding its time on ...

These sebecids were the last survivors of a group of ancient crocodile relatives called Notosuchia. Unlike today’s crocodiles ...

Researchers may have discovered Mississippi's largest ever mosasaur after pulling a Cretaceous-aged fossil out of a riverbed ...

A massive sea creature had bystanders “excited” after deciding to put on a show, California whale watchers said. On May 1, the “wonderful tail throwing humpback whale” showed off for ...

The animals went extinct around 13,000 years ago. The birth of three wolf pups, named Romulus, Remus and Khaleesi, is the world’s first "de-extinction," according to the company that aims to ...

A monstrous free talk at the city's aquarium promises to make waves with ancient ocean-dwellers, dartboard-sized frogs and a splash of conservation concern. Bristol Aquarium is turning back the ...