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| The Fire Wave, a beautiful sandstone formation exhibiting dramatic striations, striped layers in the geologic historical record. Image ID: 26473 Location: Valley of Fire State Park, Nevada, USA | Brown pelican in flight. The wingspan of the brown pelican is over 7 feet wide. The California race of the brown pelican holds endangered species status. In winter months, breeding adults assume a dramatic plumage. Image ID: 28356 Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | The Wave in the North Coyote Buttes, an area of fantastic eroded sandstone featuring beautiful swirls, wild colors, countless striations, and bizarre shapes set amidst the dramatic surrounding North Coyote Buttes of Arizona and Utah. The sandstone formations of the North Coyote Buttes, including the Wave, date from the Jurassic period. Managed by the Bureau of Land Management, the Wave is located in the Paria Canyon-Vermilion Cliffs Wilderness and is accessible on foot by permit only. Image ID: 28601 Location: North Coyote Buttes, Paria Canyon-Vermilion Cliffs Wilderness, Arizona, USA |
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| Brown pelican in flight. The wingspan of the brown pelican is over 7 feet wide. The California race of the brown pelican holds endangered species status. In winter months, breeding adults assume a dramatic plumage. Image ID: 15371 Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Black bear walking in a grassy meadow. Black bears can live 25 years or more, and range in color from deepest black to chocolate and cinnamon brown. Adult males typically weigh up to 600 pounds. Adult females weight up to 400 pounds and reach sexual maturity at 3 or 4 years of age. Adults stand about 3' tall at the shoulder. Image ID: 18744 Species: American black bear, Ursus americanus Location: Orr, Minnesota, USA | The Wave, an area of fantastic eroded sandstone featuring beautiful swirls, wild colors, countless striations, and bizarre shapes set amidst the dramatic surrounding North Coyote Buttes of Arizona and Utah. The sandstone formations of the North Coyote Buttes, including the Wave, date from the Jurassic period. Managed by the Bureau of Land Management, the Wave is located in the Paria Canyon-Vermilion Cliffs Wilderness and is accessible on foot by permit only. Image ID: 20608 Location: North Coyote Buttes, Paria Canyon-Vermilion Cliffs Wilderness, Arizona, USA |
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| Crinoid feather star closeup view of tentacles, which it extends into ocean currents, Fiji. Image ID: 34756 Species: Crinoid Feather Star, Crinoidea Location: Namena Marine Reserve, Namena Island, Fiji | Colorful starfish (sea stars) cling to the reef, covered with invertebrate life. Browning Pass, Vancouver Island. Image ID: 35261 Location: British Columbia, Canada | Pristine South Pacific tropical coral reef, with vibrant colorful dendronephthya soft corals, crinoids and schooling Anthias fishes, pulsing with life in a strong current over a pristine coral reef. Fiji is known as the soft coral capitlal of the world. Image ID: 31339 Species: Crinoid Feather Star, Dendronephthya Soft Coral, Anthias, Dendronephthya, Pseudanthias, Crinoidea Location: Namena Marine Reserve, Namena Island, Fiji |
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| Giant black sea bass, gathering in a mating - courtship aggregation amid kelp forest, Catalina Island. Image ID: 33355 Species: Giant Black Sea Bass, Stereolepis gigas Location: Catalina Island, California, USA | Adult male humpback whale singing, suspended motionless underwater. Only male humpbacks have been observed singing. All humpbacks in the North Pacific sing the same whale song each year, and the song changes slightly from one year to the next. Image ID: 02796 Species: Humpback whale, Megaptera novaeangliae Location: Maui, Hawaii, USA | Brown pelican portrait, displaying winter plumage with distinctive yellow head feathers and red gular throat pouch. Image ID: 30255 Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA |
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| A brown pelican preening, reaching with its beak to the uropygial gland (preen gland) near the base of its tail. Preen oil from the uropygial gland is spread by the pelican's beak and back of its head to all other feathers on the pelican, helping to keep them water resistant and dry. Image ID: 30289 Species: Brown Pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Juvenile bald eagle, second year coloration plumage, closeup of head and shoulders, looking directly at camera, snowflakes visible on feathers. Immature coloration showing white speckling on feathers. Image ID: 22589 Species: Bald eagle, Haliaeetus leucocephalus, Haliaeetus leucocephalus washingtoniensis Location: Kachemak Bay, Homer, Alaska, USA | 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. Image ID: 13120 Species: American bison, Bison bison Location: Yellowstone National Park, Wyoming, USA |
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| Two mature brown bears fight to establish hierarchy and fishing rights. Image ID: 17036 Species: Brown bear, Ursus arctos Location: Brooks River, Katmai National Park, Alaska, USA | Western gulls, courtship behaviour. Image ID: 18397 Species: Western gull, Larus occidentalis Location: La Jolla, California, USA | Black bear walking in a grassy meadow. Black bears can live 25 years or more, and range in color from deepest black to chocolate and cinnamon brown. Adult males typically weigh up to 600 pounds. Adult females weight up to 400 pounds and reach sexual maturity at 3 or 4 years of age. Adults stand about 3' tall at the shoulder. Image ID: 18741 Species: American black bear, Ursus americanus Location: Orr, Minnesota, USA |
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| Black bear walking in a grassy meadow. Black bears can live 25 years or more, and range in color from deepest black to chocolate and cinnamon brown. Adult males typically weigh up to 600 pounds. Adult females weight up to 400 pounds and reach sexual maturity at 3 or 4 years of age. Adults stand about 3' tall at the shoulder. Image ID: 18743 Species: American black bear, Ursus americanus Location: Orr, Minnesota, USA | Black bear walking in a grassy meadow. Black bears can live 25 years or more, and range in color from deepest black to chocolate and cinnamon brown. Adult males typically weigh up to 600 pounds. Adult females weight up to 400 pounds and reach sexual maturity at 3 or 4 years of age. Adults stand about 3' tall at the shoulder. Image ID: 18748 Species: American black bear, Ursus americanus Location: Orr, Minnesota, USA | Black bear walking in a grassy meadow. Black bears can live 25 years or more, and range in color from deepest black to chocolate and cinnamon brown. Adult males typically weigh up to 600 pounds. Adult females weight up to 400 pounds and reach sexual maturity at 3 or 4 years of age. Adults stand about 3' tall at the shoulder. Image ID: 18749 Species: American black bear, Ursus americanus Location: Orr, Minnesota, USA |
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| Brown bears fighting or sparring. These are likely young but sexually mature males that are simply mock fighting for practice. Image ID: 19148 Species: Brown bear, Ursus arctos Location: Lake Clark National Park, Alaska, USA | Mature male coastal brown bear boar waits on the tide flats at the mouth of Silver Salmon Creek for salmon to arrive. Grizzly bear. Image ID: 19149 Species: Brown bear, Ursus arctos Location: Lake Clark National Park, Alaska, USA | Full grown, mature male coastal brown bear boar (grizzly bear) in sedge grass meadows. Image ID: 19151 Species: Brown bear, Ursus arctos Location: Lake Clark National Park, Alaska, USA |
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| Full grown, mature male coastal brown bear boar (grizzly bear) in sedge grass meadows. Image ID: 19161 Species: Brown bear, Ursus arctos Location: Lake Clark National Park, Alaska, USA | Male elk bugling during the fall rut. Large male elk are known as bulls. Male elk have large antlers which are shed each year. Male elk engage in competitive mating behaviors during the rut, including posturing, antler wrestling and bugling, a loud series of screams which is intended to establish dominance over other males and attract females. Image ID: 19697 Species: Elk, Cervus canadensis Location: Madison River, Yellowstone National Park, Wyoming, USA | Male elk bugling during the fall rut. Large male elk are known as bulls. Male elk have large antlers which are shed each year. Male elk engage in competitive mating behaviors during the rut, including posturing, antler wrestling and bugling, a loud series of screams which is intended to establish dominance over other males and attract females. Image ID: 19698 Species: Elk, Cervus canadensis Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA |
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| Elk, bull elk, adult male elk with large set of antlers. By September, this bull elk's antlers have reached their full size and the velvet has fallen off. This bull elk has sparred with other bulls for access to herds of females in estrous and ready to mate. Image ID: 19721 Species: Elk, Cervus canadensis Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA | ||
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| 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. Image ID: 20700 Location: North Coyote Buttes, Paria Canyon-Vermilion Cliffs Wilderness, Arizona, USA Pano dimensions: 4661 x 25458 | ||
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| Sunset and boulders, Joshua Tree National Park. Sunset lights the giant boulders and rock formations near Jumbo Rocks in Joshua Tree N.P. Image ID: 26719 Location: Joshua Tree National Park, California, USA Pano dimensions: 5493 x 10035 | ||
Natural History Photography Blog posts (20) related to Mating
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