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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 | Brown pelican portrait, displaying winter plumage with distinctive yellow head feathers and red gular throat pouch. Image ID: 28332 Location: La Jolla, California, USA | Kelp frond showing pneumatocysts. Image ID: 02435 Species: Giant kelp, Macrocystis pyrifera Location: Santa Barbara Island, California, 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 | ||
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| Roosevelt elk, adult bull male with large antlers. This bull elk has recently shed the velvet that covers its antlers. While an antler is growing, it is covered with highly vascular skin called velvet, which supplies oxygen and nutrients to the growing bone; once the antler has achieved its full size, the velvet is lost and the antler's bone dies. This dead bone structure is the mature antler, which is itself shed after each mating season. Roosevelt elk grow to 10' and 1300 lb, eating grasses, sedges and various berries, inhabiting the coastal rainforests of the Pacific Northwest. Image ID: 25890 Species: Roosevelt elk, Cervus canadensis roosevelti Location: Redwood National Park, California, USA | California brown pelican preening. Image ID: 27261 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Brown pelican preening, cleaning its feathers after foraging on the ocean, with distinctive winter breeding plumage with distinctive dark brown nape, yellow head feathers and red gular throat pouch. Image ID: 22527 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA |
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| Brown pelican portrait, displaying winter breeding plumage with distinctive dark brown nape, yellow head feathers and red gular throat pouch. Image ID: 22529 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Boulders and sunset in Joshua Tree National Park. The warm sunlight gently lights unusual boulder formations at Jumbo Rocks in Joshua Tree National Park, California. Image ID: 26726 Location: Joshua Tree National Park, California, 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: 15125 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA |
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| Kelp fronds and pneumatocysts. Pneumatocysts, gas-filled bladders, float the kelp plant off the ocean bottom toward the surface and sunlight, where the leaf-like blades and stipes of the kelp plant grow fastest. Giant kelp can grow up to 2' in a single day given optimal conditions. Epic submarine forests of kelp grow throughout California's Southern Channel Islands. Image ID: 25396 Species: Giant kelp, Macrocystis pyrifera Location: San Clemente Island, California, USA | Brown pelican portrait, displaying winter plumage with distinctive yellow head feathers and red gular throat pouch. Image ID: 28329 Location: La Jolla, California, USA | California brown pelican preening. Image ID: 27262 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA |
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| Portrait of California brown pelican, with the characteristic winter mating plumage shown: red throat, yellow head and dark brown hindneck. Image ID: 23647 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Roosevelt elk, adult bull male with large antlers. This bull elk has recently shed the velvet that covers its antlers. While an antler is growing, it is covered with highly vascular skin called velvet, which supplies oxygen and nutrients to the growing bone; once the antler has achieved its full size, the velvet is lost and the antler's bone dies. This dead bone structure is the mature antler, which is itself shed after each mating season. Roosevelt elk grow to 10' and 1300 lb, eating grasses, sedges and various berries, inhabiting the coastal rainforests of the Pacific Northwest. Image ID: 25878 Species: Roosevelt elk, Cervus canadensis roosevelti Location: Redwood National Park, California, USA | Brown pelican, winter adult breeding plumage, showing bright red gular pouch and dark brown hindneck plumage of breeding adults. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning. Image ID: 20074 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA |
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| Brown pelican, non-breeding winter plumage. This large seabird has a wingspan over 7 feet wide. The California race of the brown pelican holds endangered species status, due largely to predation in the early 1900s and to decades of poor reproduction caused by DDT poisoning. Image ID: 20087 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, 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: 20293 Species: Brown pelican, Pelecanus occidentalis, Pelecanus occidentalis californicus Location: La Jolla, California, USA | Male elephant seals (bulls) rear up on their foreflippers and fight in the surf for access for mating females that are in estrous. Such fighting among elephant seals can take place on the beach or in the water. They bite and tear at each other on the neck and shoulders, drawing blood and creating scars on the tough hides. Image ID: 20369 Species: Elephant seal, Mirounga angustirostris Location: Piedras Blancas, San Simeon, California, 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: 28357 Location: La Jolla, California, USA | Brown pelican portrait, displaying winter breeding plumage with distinctive dark brown nape, yellow head feathers and red gular throat pouch. Image ID: 22565 Species: Brown pelican, Pelecanus occidentalis Location: La Jolla, California, USA | Juvenile bald eagle, second year coloration plumage, closeup of head, snowflakes visible on feathers. Immature coloration showing white speckling on feathers. Image ID: 22612 Species: Bald eagle, Haliaeetus leucocephalus, Haliaeetus leucocephalus washingtoniensis Location: Kachemak Bay, Homer, Alaska, USA |
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| The Subway, a iconic eroded sandstone formation in Zion National Park. Image ID: 26092 Location: The Subway, Zion National Park, Utah, USA | ||
Natural History Photography Blog posts (20) related to Mating
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