Favites Coral polyps feeding at night and fluorescing when illuminated by ultraviolet light, Sabah, Borneo, Malaysia (© Louise Murray/Visuals Unlimited, Inc.)(Bing New Zealand)

Yellow-bellied marmot in Yellowstone National Park, Wyoming (© George Sanker/Minden Pictures)(Bing New Zealand)

Reflection of City Hall, Stralsund, Germany (© Nico Stengert/Novarc/Corbis)(Bing New Zealand)

Ice flows on Hudson Bay, Churchill, Manitoba, Canada (© Mike Grandmaison/All Canada Photos/SuperStock)(Bing New Zealand)

The famous flowerpots, eroded limestone formations, located on the shoreline of Flowerpot Island, Georgian Bay, in Fathom Five National Marine Park, Ontario (© Ethan Meleg/All Canada Photos/Getty Images)(Bing New Zealand)

Blue wildebeests on the Musabi Plains in the Serengeti National Park, Tanzania (© Adrian Bailey/Aurora)(Bing New Zealand)

Caucasus Mountains near Sochi, Russia (© David Trood/Getty Images)(Bing New Zealand)

Two Grey herons (Ardea cinerea) squabbling over fish, River Tame, Stockport, Greater Manchester (© Terry Whittaker/Corbis)(Bing New Zealand)

Close-up of a red stag in the Scottish Highlands (© gmsphotography/Getty Images)(Bing New Zealand)

Engadin Skimarathon in Engadin, Switzerland (© Stephan Zirwes/Gallery Stock)(Bing New Zealand)

Ice in Jökulsarlon, a glacier lagoon in southeast Iceland (© Matteo Colombo/Getty Images)(Bing New Zealand)

Ice in Toronto Harbour, Ontario, Canada (© Peter Bowers/Flickr/Getty Images)(Bing New Zealand)

Asuka, Japan (© Yamaguchi/Flickr Open/Getty Images)(Bing New Zealand)

Star horseshoe worm on a hump coral reef off the Solomon Islands (© Chris Newbert/Corbis)(Bing New Zealand)

View of the Prismas Basálticos in Huasca de Ocampo, Hidalgo, Mexico (© Marcos Ferro/Aurora Photos)(Bing New Zealand)

Architectural detail of Rinpung Dzong in Paro, Bhutan (© Ocean/Corbis)(Bing New Zealand)

Harp seal pup at the Gulf of St. Lawrence, Canada (© Mitsuaki Iwago/Corbis)(Bing New Zealand)

Stars arc over Lake Hallstatt, Austria (© Getty Images)(Bing New Zealand)

Cliffs and lighthouse at Beachy Head, East Sussex, England (© Malcolm Park/Corbis)(Bing New Zealand)

American white pelican in flight, Red River, Lockport, Manitoba, Canada (© Ken Gillespie/Corbis)(Bing New Zealand)

Backcountry skier near Mt. Baker Ski Area, North Cascades National Park, Washington (© Jay Goodrich/Tandem Stock)(Bing New Zealand)

Lucky Bay, Cape Le Grand National Park, Australia (© Ocean/Corbis)(Bing New Zealand)

Red fox near Churchill, Manitoba, Canada (© MyLoupe/Universal Images Group/Getty Images)(Bing New Zealand)

Lightning storm over Grand Canyon National Park, Arizona (© Scott Stulberg/Corbis)(Bing New Zealand)

Aerial view of Wall Street, Manhattan, New York City, New York (© Cameron Davidson/Corbis)(Bing New Zealand)

Weather station on Brocken peak, Saxony-Anhalt, Germany (© Günter Gräfenhain/Huber/4Corners)(Bing New Zealand)

Wild dogs in Botswana (© Getty Images)(Bing New Zealand)

Horsetail Fall at sunset seen from Taft Point, Yosemite National Park, California (© Josh Miller/Aurora Photos)(Bing New Zealand)