In a national park in Patagonia, something remarkable is happening between predators and prey: Pumas are returning–and hunting penguins. A new study shows how this unusual food source is fundamentally ...

Wildlife conservation efforts in the Patagonia region of Argentina have been so successful that rebounding populations of pumas have found an unexpected new main source of prey: Magellanic penguins.

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 ...