Frozen Planet

@discovery

King penguins silhouetted at dawn, South Georgia. King penguins are ...

Orca spyhopping near Ad&amp;eacute;lie penguins. An orca, or killer whale, ...

Elephant seals battle among king penguins. A male southern elephant ...

Polar bear mother nursing two cubs. An unusual aerial perspective ...

Woolly bear caterpillar freezing over winter. This caterpillar&#39;s heart has ...

Arctic wolf with pup. An Arctic wolf protects her pup ...

Black-browed albatross off the coast of South Georgia. Albatrosses have ...

Mother polar bear leads her cubs across the sea ice. ...

The first Arctic sunrise of the year. The first sunrise ...

A frozen Arctic river flows after 6 months locked in ...

Narwhals wait for sea ice to break up. In Arctic ...

Sea ice along Canada&#39;s Arctic coast begins to break up.