857-95121 - Scenic view of desert from Zabriskie Point in Death Valley National Park, California.

857-92046 - Aerial view of the Rt. 19 bridge over the New River Gorge near Fayetteville, WV

857-91923 - Summer marshland at sunset

857-92000 - Mount Rainier towers over this foggy meadow of wildflowers in Washington's wilderness.

857-91985 - Italian Olive Trees

857-91919 - Forest in Banff National Park.

857-91936 - Haena and Tunnels Reef from the air, Kauai.

857-91937 - Aerial view into Koke'e formations, Kauai.

857-92003 - Beautiful wildflowers and stream beneath Oregon's Three Fingered Jack Peak.

857-91993 - Up-close perspective of cascade and waterfall in Oregon's Columbia Gorge.

857-91998 - Wildflowers compliment this large waterfall in Oregon's Columbia Gorge.

857-91995 - Waterfall in sandstone canyon, Zion National Park, Utah.

857-91868 - Ice crystals form on a window during sub zero temperatures on December 14, 2008 in Fort Collins, Colorado.

857-92001 - Beautiful soft light amidst this Oregon forest and small cascades.

857-91856 - Frozen waterfall coming through a sandstone arch in Utah.

857-91997 - Large waterfall in the heart of Oregon's Columbia Gorge.

857-91911 - Native plants in Joshua Tree.

857-91853 - Waterfall cascading through rocks in the desert at sunset in Moab, Utah.

857-91999 - Wildflowers, sea and sunset on Oregon's North Coast.

857-91841 - Aerial view of a beach in North Carolina.

857-91867 - Ice crystals form on a window during sub zero temperatures on December 14, 2008 in Fort Collins, Colorado.

857-92054 - Falling snow against row of trees in Fayetteville, WV

857-91961 - Reed flute cave, Guilin, Guangxi region, China.

857-91922 - Summer marshland at sunset

857-91935 - Hanalei Bay from the air, Kauai.

857-90878 - California Condor, Gymnogyps californianus, over the Grand Canyon, Northern Arizona, United States of America

857-90984 - Crumbling cliffs line a canyon above Lake Powell in Big Water, Utah, just north of the Arizona boarder. Rain is clearly visible in the distance, United States of America

857-91001 - River near Loch Slapin, Isle of Skye, Scotland. August 2007, Scotland

857-90780 - A double rainbow forms above The Mittens of monument valley. Photo by Thomas Kranzle, United States of America

857-90876 - A glacier entering a silty lake, Glacier Bay National Park, Alaska, United States of America

857-90616 - UNALASKA, AK - JUNE 22: A group of western Stellar sea lions (Eumetopias jubatus) congregate on a rocky outcrop along the Aleutian chain on Unalaska Island, Alaska on June 22, 2008. The western Stellar sea lion. the largest of all sea lions, is considered endangered with the reason for its decline uknown. (Photo By Dan Rafla/Aurora), United States of America

857-90884 - A human hand reaches out towards a newborn gray whale calf (Eschrichtius robustus) swimming near the surface with its mother in Laguna San Ignacio, on the Pacific coast of Baja California Sur, Mexico. Designated as a UNESCO World Heritage site and part of the Vizcaino Biosphere Reserve, it is the last undeveloped gray whale birthing lagoon on the planet, Mexico

857-90800 - Snowy Road in Hood River Oregon, United States of America

857-90886 - A newborn gray whale calf (Eschrichtius robustus) surfaces in Laguna San Ignacio, on the Pacific coast of Baja California Sur, Mexico. Designated as a UNESCO World Heritage site and part of the Vizcaino Biosphere Reserve, it is the last undeveloped gray whale birthing lagoon on the planet, Mexico

857-90996 - Wildflowers glow in the late evening light in front of the north face of Mt. Baker, in the Mt. Baker Wilderness, North Cascades Mountains, Washington, United States of America

857-91017 - Mountain peaks behind a haze filled valley in the Sequoia National Forest, United States of America

857-91005 - Delicate Arch glows as the sun sets over Arches National Park, Utah on December 26, 2006. The La Sal mountain range in the background has snowcapped peaks that tell of recent snowfall, United States of America

857-90319 - Spirits Creek, Ozark Highlands Trail, Arkansas, United States of America

857-69977 - Sea Turtle, Kulu Ecopark, Viti Levu, Fiji.

857-68085 - The Viedma Glacier terminating into Lago Viedma on February 25, 2008, Chalten, Argentina.

857-68060 - Horses grazing near a lake on February 29, 2008 in Las Torres National Park, Chile.

857-68092 - The Viedma Glacier terminating into Lago Viedma on February 25, 2008, Chalten, Argentina.

857-70212 - The Cuban Knight Anole (Anolis equestris) is the largest anole in the world. It is native to Cuba, but has been introduced to South Florida. Growing to a length of 13 to 20 inches it is fiercely territorial and aggressive to anything that enters its territory

857-68094 - The Viedma Glacier terminating into Lago Viedma on February 25, 2008, Chalten, Argentina.

857-68072 - A herd of guanacos walking near the Rio Paine on March 1, 2008 in Las Torres Del Paine National Park, Chile.

857-68084 - The Viedma Glacier terminating into Lago Viedma on February 25, 2008, Chalten, Argentina.

857-67980 - Rime ice and Blue Ridge Mountains, Roan Highlands, North Carolina.

857-68240 - A drought is an extended period of months, or years, when a region notes a deficiency in its water supply. Generally, this occurs when a region receives consistently below average precipitation. It can have a substantial impact on the ecosystem and agriculture of the affected region.

857-35865 - Mature and immature of American bald eagles (Haliaeetus leucocephalus) stand side-by-side on a tree branch to show the difference between juvenile and adult plumage.

857-35850 - A pair of Pacific walruses (Odobenus rosmarus) joust with ivory tusks on the rocky shore of Walrus Islands State Game Sanctuary on Round Island at Bristol Bay in Alaska's Bering Sea.

857-35860 - An American bald eagle (Haliaeetus leucocephalus) soaring against blue sky.

857-35866 - An American bald eagle (Haliaeetus leucocephalus) roosts on a dead tree snag.

857-35856 - An American bald eagle (Haliaeetus leucocephalus) soaring against blue sky.

857-35859 - An American bald eagle (Haliaeetus leucocephalus) soaring against blue sky.

857-35851 - A horned puffin (Fratercula corniculata) stands on a rocky, lichen-covered precipice at the Walrus Islands State Game Sanctuary on Round Island at Bristol Bay in Alaska's Bering Sea.

857-35855 - An American bald eagle (Haliaeetus leucocephalus) hunts for food in flight over Cook Inlet in Alaska.

857-35861 - An American bald eagle (Haliaeetus leucocephalus) soaring against blue sky.

857-32840 - Sinous dune ridge in the great sand sea south of Siwa oasis, Egyptian Western Desert.

857-35857 - An American bald eagle (Haliaeetus leucocephalus) flies over a river with a fish in its talons.

857-35862 - Close-up portrait, profile of an American bald eagle (Haliaeetus leucocephalus.)

857-35858 - An American bald eagle (Haliaeetus leucocephalus) swoops with open talons to catch a fish in an Alaska lake.

857-4278 - The stern gaze of an American bald eagle is captured in this close-up portrait. (Haliaeetus leucocephalus.)

857-7841 - Shackleton Mountain & vicinity at sunset

857-4277 - Bald Eagle (Haliaeetus leucocphalus) profile.

857-3936 - Caribou antlers and skull on Baffin Island, Canada.