Conservation photographer Paul Nicklen has been documenting the wildlife in the arctic regions of the world for decades, often getting dangerously up close with the animals he encounters in the sea and on land.
The team behind the documentary Planet Earth have teamed up again to explore the coldest, most isolated places on Earth. TV critic David Bianculli says watching Frozen Plant "captures images of so much majesty, artistry, and clarity, it's almost ridiculous."
Researcher David Mech tracks and studies wolves. He was able to earn the trust of a pack in the Arctic, which granted Mech and his team unprecedented access to the animals. He witnessed the care of their pups and joined them on their hunt.