The narrator explains their key adaptations and we see them in ... three groups and allocate each group one of the animals featured - polar bear, snow fox and reindeer. Watch the clip again ...

Today, Lindqvist continues using genomic techniques to study the polar bear, with the goal of identifying genetic adaptations that help the animal survive brutal Arctic winters.

The study, published in Science Advances, shed light on how these animals survive the Arctic temperatures ... little bit of insight as to some of the mechanisms and the adaptations [of polar bears].” ...

In "Ends of the Earth," Neil Shubin travels north and south to explore the frontiers of polar science and history.

Darwin, Wallace and the other 19th century naturalists who traveled widely were fascinated by the distribution of animals and plants ... Why does the Arctic have polar bears and Antarctica penguins?

A sneak peak of a new episode of National Geographic's Incredible Animal Journeys shows two polar bear cubs exploring the outdoors for the first time Kelli Bender is the Pets Editor at PEOPLE.

The narrator explains their key adaptations and we see them in ... three groups and allocate each group one of the animals featured - polar bear, snow fox and reindeer. Watch the clip again ...