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

Penguins, it seems, can't really taste their dinners. They aren't able to pick up on sweetness, bitterness, or a meaty flavor known as umami, a study finds. Instead, they can only taste sourness and ...

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

Penguins of all sorts are beloved birds, known for their quirky appearance and endearing waddle. Macaroni penguins are especially notable for their dashing hairdos and festive name. This particular ...