Arctic: Arctic exploration time line -- Erik the Red reaches Greenland -- John Davis dances with Inuit and explores the Davis Straits and Labrador -- Henry Hudson ventures Northwest and Northeast in search of a passage -- William Parry explores Lancaster sound and beyond -- John Franklin leads Arctic exploration's biggest disaster -- Fridtjof Nansen travels " farthest north" and Roald Amundsen discovers the Northwest passage -- Robert Peary and Fredrick Cook race to the North Pole -- Gretel Ehrlich explores Greenland's nature and its native peoples -- Antarctic: Antarctic exploration time line -- Captain James Cook's three voyages to Antarctica's edge -- James Clark Ross explores Antarctica by ship -- Robert Scott and Roald Amundsen race to the South Pole -- Ernest Shackleton attempts to cross Antarctica -- Admiral Richard E. Byrd is first to fly over the South Pole -- Scientist Bill Green studies Antarctic Lakes.;Describes the travels and adventures of Arctic and Antarctic explorers throughout history, from Eric the Red in 981 or 982 to Gretel Ehrlich in 2000.