Along South America’s windswept southern coast, Magellanic penguins have spent decades nesting in relative safety. For much of the twentieth century, sheep ranching dominated the region, and pumas ...

Reintroducing keystone predator species can have a near-miraculous restorative effect on ecosystems. This is what I would remind a Patagonian penguin who is feeling a bit down about his whole family ...

Pumas in southern Patagonia have discovered an unexpected new food source in the dense colonies of Magellanic penguins, and the shift is rewriting what scientists thought they knew about big cat ...

Some Argentinian penguins are experiencing high levels of predation from pumas recolonising their historical territory. A new study has quantified the risk on long-term penguin population survival.

EDITOR’S NOTE: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...