National Geographic photographer and marine biologist Paul Nicklen has spent much of his scientific and photographic career within the Arctic and Antarctic Circles. A native of the Canadian Arctic, Paul has tracked sea lions in Alaska's Aleutian Islands, dived with minke whales off of Australia's coral reefs, and sailed in Antarctica and Arctic Norway on assignment for National Geographic magazine. His photographs have also appeared in magazines including Natural History, International Wildlife, and Equinox.