A new study comparing 59 species of primates linked same-sex sexual behavior to scarce resources and more predators in ...

Rock climbers in Italy stumbled across evidence of what appears to be a sea turtle stampede that took place nearly 80 million ...

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

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

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.

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 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. When you purchase through links ...

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 ...

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 ...

Chimpanzees use a variation of the "scientific method" — discarding prior beliefs if convincing new evidence comes along to change their minds, research shows. When you purchase through links on our ...

A recent review of over 312 studies has identified dozens of unique uses of roadkill in scientific research. The review, ...