Born and raised on Baffin Island (where Darrel met him in 1991), it's always been clear that Paul Nicklen has ice in his blood. Only with this extraordinary book can you appreciate the intensity and depth of the man's commitment to the polar regions. He captures, sometimes in alarming close-up, polar bears in the water and on the ice, dueling narwhals, humpbacks, walruses, penguins and all manner of marine life. The series of photographs of leopard seals, filmed almost entirely underwater and at very close range, are astounding. With chapters on Admiralty Inlet, Spitsbergen, the Antarctic Peninsula and South Georgia.  (ANT305, $50.00)