Jack Dykinga / Scalding hot water continuously spouting behind layers of mineral deposits, Fly Geyser, Black Rock Desert, Great Basin Desert, Nevada, USA

Steven Kazlowski / Young Polar bear (Ursus maritimus) standing and trying to balance in shallow water along the Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Oc...

Steven Kazlowski / Young Polar bear (Ursus maritimus) standing and trying to balance in shallow water along the Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Oc...

Steven Kazlowski / Young Polar bear (Ursus maritimus) standing and trying to balance in shallow water along the Bernard Spit, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, Oc...

Steven Kazlowski / Two curious young Polar bears (Ursus maritimus), Barter Island, off the 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, October 2011

George Sanker / Ellis River high in White Mountain National Forest. New Hampshire, October 2012.

George Sanker / American Buffalo / Bison (Bison bison) grazing in open plains. Yellowstone National Park, Wyoming, October.

Piotr Naskrecki / Mantid (Mantidae), Woburn, Massachusetts

Piotr Naskrecki / Mantid (Taumantis sp) instar, Woburn, Massachusetts

Gavin Hellier / View over the Churches and cityscape of Reykjavik with a backdrop of snow capped mountains, Iceland 2006

Gavin Hellier / Elevated view of mid-town Manhattan, New York City, USA 2009. No release available.

Gavin Hellier / Panoramic view of Queensboro Bridge and Mid town Manhattan, New York City, USA 2009. No release available.