The bisons massive head is its most characteristic feature. Its forehead bulges because of its convex-shaped frontal bone. Its shoulder hump, dwindling bowlike to the haunches, is supported by unusually long spinal vertebrae. Over powerful neck and shoulder muscles grows a great shaggy coat of curly brown fur, and over the head, like an immense hood, grows a shock of black hair. Its forequarters are higher and much heavier than its haunches. A mature bull stands about 6 1/2 feet (2 meters) at the shoulder and weighs more than 2,000 pounds (900 kilograms). The bisons horns are short and black. In the male they are thick at the base and taper abruptly to sharp points as they curve outward and upward; the females horns are more slender.
Species: American bison, Bison bison
Location: Yellowstone National Park, Wyoming
Image ID: 13120
Sol Duc Falls. Sol Duc Falls is one of the largest and most beautiful waterfalls in Olympic National Park, seen here from a bridge that crosses the canyon just below the falls. Surrounding the falls is an old-growth forest of hemlocks and douglas firs, some of which are three hundred years in age.
Location: Sol Duc Springs, Olympic National Park, Washington
Image ID: 13747
Delicate Arch, dusted with snow, at sunset, with the snow-covered La Sal mountains in the distance. Delicate Arch stands 45 feet high, with a span of 33 feet, atop of bowl of slickrock sandstone.
Location: Delicate Arch, Arches National Park, Utah
Image ID: 18104
Panorama of the Wave. The Wave is a sweeping, dramatic display of eroded sandstone, forged by eons of water and wind erosion, laying bare striations formed from compacted sand dunes over millenia. This panoramic picture is formed from thirteen individual photographs.
Location: North Coyote Buttes, Paria Canyon-Vermilion Cliffs Wilderness, Arizona
Image ID: 20700
Panorama dimensions: 4661 x 25458
The Virgin River flows by autumn cottonwood trees, part of the Virgin River Narrows. This is a fantastic hike in fall with the comfortable temperatures, beautiful fall colors and light crowds.
Location: Virgin River Narrows, Zion National Park, Utah
Image ID: 26098
Light Beam in Upper Antelope Slot Canyon. Thin shafts of light briefly penetrate the convoluted narrows of Upper Antelope Slot Canyon, sending piercing beams through the sandstone maze to the sand floor below.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 28561
The leafy seadragon (Phycodurus eques) is found on the southern and western coasts of Australia. Its extravagent appendages serve only for camoflage, since it has a nearly-invisible dorsal fin that propels it slowly through the water. The leafy sea dragon is the marine emblem of South Australia.
Species: Leafy seadragon, Phycodurus eques
Location: Rapid Bay Jetty, South Australia
Image ID: 39134
Los Islotes, famous for its friendly colony of California sea lions, part of Archipelago Espiritu Santo, Sea of Cortez, Aerial Photo.
Location: Los Islotes, Baja California, Mexico
Image ID: 32409
Lower Antelope Canyon, a deep, narrow and spectacular slot canyon lying on Navajo Tribal lands near Page, Arizona.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 26628
Lower Antelope Canyon, a deep, narrow and spectacular slot canyon lying on Navajo Tribal lands near Page, Arizona.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 28559
A hiker admiring the striated walls and dramatic light within Antelope Canyon, a deep narrow slot canyon formed by water and wind erosion.
Location: Navajo Tribal Lands, Page, Arizona
Image ID: 18009
Belt of Venus over Horseshoe Bend on the Colorado River. The Colorado River makes a 180-degree turn at Horseshoe Bend. Here the river has eroded the Navajo sandstone for eons, digging a canyon 1100-feet deep. The Belt of Venus, or anti-twilight arch, is the shadow of the earth cast upon the atmosphere just above the horizon, and occurs a few minutes before sunrise or after sunset.
Location: Page, Arizona
Image ID: 37781
Panorama dimensions: 5719 x 8788
Fremont Cottonwood Tree in winter sillhouette against red Zion Canyon walls.
Location: Zion National Park, Utah
Image ID: 37795