Predator power gap: Jaguars surpass pumas in raw strength and bite force, giving them an edge in direct confrontations. Aggression in nature: From hippos to crocodiles, aggression is a survival tool ...

In Argentina, the return of pumas brought top predators back to the landscape — much to penguins’ dismay. By Alexa Robles-Gil Penguins throughout the southern seas have to worry about being picked off ...

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 ...

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 ...