An ancient and enormous organism called Prototaxites, initially found to be a type of fungus, may actually be an unknown ...

Cheetahs vanished from Saudi Arabia half a century ago. Now long-dead mummified big cats may help herald their return.

The origins of whaling are highly debated. Now, some of the earliest signs of active whale hunting have appeared somewhere unexpected: southern Brazil.

Mice that experience the real world may be better models for human mental health conditions, compared with lab mice that never leave their cages, a study hints.

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.

Scientists recently discovered a new species of green anaconda in the Amazon rainforest. A new Nat Geo series shows the moment they encountered this snake in the wild.

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 ...

Nancy Shute discusses how scientists are beginning to study animals’ emotions and personalities — from joy to individual ...

Across forests, oceans and city edges, wild animals live under constant pressure from stronger rivals, scarce resources and ...

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 ...

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 ...