November 7 2009

Australia, Germany, Canada

Spelunkers in Gaping Gill Cave, North Yorkshire, England
Annie Griffiths Belt/CORBIS ©

China

They are comfortable: Dana in the National Parks in Alaska, Deep the Elk
Colin Bogucki/Aurora ©

Untied Kingdom, Canada, New Zealand, United States

Antarctic Fur Seals and King Penguin Chicks On Beach, Gold Harbor, South Georgia Island, South Atlantic
Tony Ernst ©