A natural experiment in a national park in Patagonia shows how the return of a large predator can reshape an ecosystem.

Pumas in Patagonia, Argentina are eating penguins in a national park — and it's changing how the big cats are interacting ...

Penguins throughout the southern seas have to worry about being picked off by seals or hunted by orcas. On land, they can ...

Breeders in Argentine Patagonia went wild on social media after heavy snowfalls completely covered their animals placing around 1 million of them in danger of starving to death as the region goes ...

Puma populations in Patagonia, Argentina, have rebounded after decades of conservation, reaching the highest density ever ...

There’s just something about penguins — and for the scientists and conservationists who work with Patagonia’s flightless marine birds, it’s usually love at first sight. Marine biologist Andrea Raya ...

Scientists in Chile's Patagonia region are unearthing the southernmost dinosaur fossils recorded outside Antarctica, including remains of megaraptors that would have dominated the area's food chain ...