Polar bears are also epic swimmers, which is why they’re officially known as Ursus maritimus, or ‘sea bear’. They have three eyelids, to help protect them from the Arctic elements.

Past research has established that polar bear cubs’ odds of survival are impacted by how long their mothers spend denning. However, the underlying reasons have long been a mystery, and data obtained ...

The great white polar bear is the youngest and largest of the world's bear species — a mighty hunter and fierce defender of its young that's among the world's most vulnerable animals. Two-thirds of ...