YVA MOMATIUK and JOHN EASTCOTT spend a summer with Grizzly Bears in Alaska. Photographers HOWARD BUFFETT and TOM MANGELSEN team up to protect the Mountain Gorillas of Rwanda. TUI DE ROY photos and text on the nomads of the sky: the mighty Albatross. Facing the Great Whites: JEFF ROTMAN dives with the fearsome Great White Shark. DAISY GILARDINI documents extreme adventures in the Arctic and the Antarctic from Pole to Pole. The photography of FRANS LANTING and text by CHRISTINE ECKSTROM lets us Feel the Heat of Hawai\'i Volcanoes National Park.