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

A new study finds Patagonia pumas eating penguins, staying near colonies, tolerating each other more, and reshaping how ...

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

The novel hunting behaviour was observed on the windswept shores of Monte León National Park in south-east Argentina.

In a national park in Patagonia, something remarkable is happening between predators and prey: Pumas are returning—and ...

Penguins in the coastal steppes of Argentina have a new enemy to worry about: the increasing numbers of pumas in Monte León ...

Protections for wildlife, including ranches that were donated to Argentina's national park service and converted to the Monte ...

Mountain lions are adapting to their defenseless, predictable prey, which return to Patagonia seasonally to nest and breed, ...