June 18 2011

China, Germany, Japan, United Kingdom

Young Emperor Penguin (Aptenoytes Forsteri) Chick and Adult, Snow Hill Island, Weddell Sea, Antarctica
Wayne Lynch/Corbis ©

Australia

Thor’s Well, on the Oregon Coast
Chris Mullins ©

Canada, New Zealand, United States

Deepwater Mushroom Soft Coral (Anthomastus Ritteri) off the Coast of California, in the Pacific Ocean
Mark Conlin/Photolibrary ©

June 17 2011

Australia, China, Germany, United Kingdom

Deepwater Mushroom Soft Coral (Anthomastus Ritteri) off the Coast of California, in the Pacific Ocean
Mark Conlin/Photolibrary ©

Japan

Spirit Island in Maligne Lake, Jasper National Park, Alberta, Canada
Robert Postma/Getty Images ©

Canada, New Zealand, United States

Kolgrima River Delta, Iceland
Hans Strand/Corbis ©