Scientists have successfully extracted the DNA of ancient mummified cheetahs discovered in a cave in Saudi Arabia. This is ...

Researchers have identified ginkgo-toothed beaked whales alive at sea for the first time after years of searching, and in doing so solved the mystery of an odd echolocation pulse in the North Pacific.

More than 14,000 years ago, a wolf pup ate a piece of woolly rhino. Scientists have analyzed the rhino's DNA to figure out ...

A video has revealed never-before-seen behaviors in wolves that could mark the first case of tool use in a wild member of the wolf and dog family — and it was all for some crab bait. When you purchase ...

Following Jane Goodall's death, chimp experts explain how her early observations still influence our understanding of our ape cousins. When you purchase through links on our site, we may earn an ...

Scientists recently discovered a new species of green anaconda in the Amazon rainforest. A new Nat Geo series shows the ...

Scientists with the Norwegian Orca Survey and Orca Channel have documented, for the first time and in astounding detail, the birth of an orca and the newborn's first hour. When you purchase through ...

From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are displaying some fascinating — and sometimes terrifying — behaviors. When you ...

19. The largest known prime number contains 41,024,320 digits. 20. Frogs breathe and drink through their skin. 21. A bullet ...

A new study reveals an unknown species of whiplash squid burying itself upside down in the deep sea — a first-of-its-kind behavior for cephalopods. When you purchase through links on our site, we may ...

A clip from the upcoming series "Prehistoric Planet: Ice Age" shows how iconic ice age creatures adapted to their changing environment as temperatures rose and ice sheets started to melt. When you ...

Researchers have found footprints of large, bone-crushing dogs in the 12 million-year-old Ashfall Fossil Beds in northeastern Nebraska, suggesting these large carnivores may have survived a ...