From tiny penguins to large polar bears, these creatures must find ways to survive in the harshest environments of the planet ...

It’s a common mix-up in pop culture: people imagine polar bears and penguins sharing icy landscapes. Yet, in reality, penguins never live in the Arctic. They are found exclusively in the Southern ...

The Western Arctic Caribou Herd, once the biggest in Alaska, is faltering, having fallen from a high of 490,000 animals in 2003 to only 152,000 as of 2023. But to the east, the Porcupine Caribou Herd ...