Tourists onboard a Polar Latitudes Expeditions ship in Antarctica saw a pair of orcas hunting a gentoo penguin.

Tourists were stunned when a pair of orcas tried to hunt a gentoo penguin alongside their ship. Here’s what happened next.

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 ...