Search results for Sexual Dimorphism Male - Fem...

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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
Blue whale underwater closeup photo. This picture of a blue whale, the largest animal ever to inhabit earth, shows it swimming through the open ocean, a rare underwater view. Since this blue whale was approximately 80-90' long and just a few feet from the camera, an extremely wide lens was used to photograph the entire enormous whale, Balaenoptera musculus
Adelie penguins leaping into the ocean from an iceberg, Pygoscelis adeliae, Brown Bluff
The Second Wave at Sunset, North Coyote Buttes. The Second Wave, a curiously-shaped sandstone swirl, takes on rich warm tones and dramatic shadowed textures at sunset. Set in the North Coyote Buttes of Arizona and Utah, the Second Wave is characterized by striations revealing layers of sedimentary deposits, a visible historical record depicting eons of submarine geology, Paria Canyon-Vermilion Cliffs Wilderness
Brown pelican in flight against pastel-colored sky at sunrise. 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, Pelecanus occidentalis, Pelecanus occidentalis californicus, La Jolla
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, Cervus canadensis, Mammoth Hot Springs, Yellowstone National Park, Wyoming
Bull elk spar to establish harems of females, Gibbon Meadow, Cervus canadensis, Gibbon Meadows, Yellowstone National Park, Wyoming
Grand Prismatic Spring (left) and Excelsior Geyser (right). Grand Prismatic Spring displays a stunning rainbow of colors created by species of thermophilac (heat-loving) bacteria that thrive in narrow temperature ranges. The blue water in the center is too hot to support any bacterial life, while the outer orange rings are the coolest water. Grand Prismatic Spring is the largest spring in the United States and the third-largest in the world. Midway Geyser Basin, Yellowstone National Park, Wyoming
A large, old brown bear (grizzly bear) wades across Brooks River. Coastal and near-coastal brown bears in Alaska can live to 25 years of age, weigh up to 1400 lbs and stand over 9 feet tall, Ursus arctos, Katmai National Park
Full grown, mature male coastal brown bear boar (grizzly bear) in sedge grass meadows, Ursus arctos, Lake Clark National Park, Alaska
A great white shark opens it mouth just before it attacks its prey with a crippling, powerful bite. After the prey has been disabled, the shark will often wait for it to weaken from blood loss before resuming the attack. If the shark looses a tooth in the course of the bite, a replacement just behind it will move forward to take its place, Carcharodon carcharias, Guadalupe Island (Isla Guadalupe)
Mule deer in tall grass, fall, autumn, Odocoileus hemionus, Yellowstone National Park, Wyoming
A great white shark swims through the clear waters of Isla Guadalupe, far offshore of the Pacific Coast of Baja California. Guadalupe Island is host to a concentration of large great white sharks, which visit the island to feed on pinnipeds and tuna, Carcharodon carcharias, Guadalupe Island (Isla Guadalupe)
Two Adelie penguins, holding their wings out, standing on an iceberg, Pygoscelis adeliae, Paulet Island
Humpback whale in Antarctica. A humpback whale swims through the beautiful ice-filled waters of Neko Harbor, Antarctic Peninsula, Antarctica, Megaptera novaeangliae
A great white shark swims through the clear waters of Isla Guadalupe, far offshore of the Pacific Coast of Mexico's Baja California. Guadalupe Island is host to a concentration of large great white sharks, which visit the island to feed on pinnipeds and use it as a staging area before journeying farther into the Pacific ocean, Carcharodon carcharias, Guadalupe Island (Isla Guadalupe)
Ocean sunfish recruiting fish near drift kelp to clean parasites, open ocean, Baja California, Mola mola
Tiger shark and horse-eye jacks, Galeocerdo cuvier
The Wave at Night, under a clear night sky full of stars. Photographer is illuminating the striated rocks with a small handheld light. The Wave, an area of fantastic eroded sandstone featuring beautiful swirls, wild colors, countless striations, and bizarre shapes is 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
The Second Wave at Night. The Second Wave, a spectacular sandstone formation in the North Coyote Buttes, lies under a sky full of stars, Paria Canyon-Vermilion Cliffs Wilderness, Arizona
The Tree of Eons, a spectacular dendritic formation in the Bentonite Hills of Utah. Fantastic colorful sedimentary patterns, ancient Bentonite layers are exposed through erosion in the Utah Badlands. The Bentonite Hills are composed of the Brushy Basin shale member of the Morrison Formation. This layer was formed during Jurassic times when mud, silt, fine sand, and volcanic ash were deposited in swamps and lakes. Photographed just before sunrise with soft pre-dawn illumination. Aerial panoramic photograph
Bristlecone pine displays its characteristic gnarled, twisted form as it rises above the arid, dolomite-rich slopes of the White Mountains at 11000-foot elevation. Patriarch Grove, Ancient Bristlecone Pine Forest, Pinus longaeva, White Mountains, Inyo National Forest
Bigeye trevally jacks, motion blur, schooling, Caranx sexfasciatus, Darwin Island
Dune Evening Primrose bloom in Anza Borrego Desert State Park, during the 2017 Superbloom, Oenothera deltoides, Anza-Borrego Desert State Park, Borrego Springs, California
Townsley Lake (10396'), a beautiful alpine lake sitting below blue sky, clouds and Fletcher Peak (right), lies amid the Cathedral Range of glacier-sculpted granite peaks in Yosemite's high country, near Vogelsang High Sierra Camp, Yosemite National Park, California
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
A great white shark swims underwater through the ocean at Guadalupe Island, Carcharodon carcharias, Guadalupe Island (Isla Guadalupe)
The Milky Way at Night over Sky Rock, panorama, spherical projection. Sky Rock petroglyphs near Bishop, California. Hidden atop an enormous boulder in the Volcanic Tablelands lies Sky Rock, a set of petroglyphs that face the sky. These superb examples of native American petroglyph artwork are thought to be Paiute in origin, but little is known about them
Sky Rock petroglyphs near Bishop, California, sunrise light just touching clouds and the Sierra Nevada. Hidden atop an enormous boulder in the Volcanic Tablelands lies Sky Rock, a set of petroglyphs that face the sky. These superb examples of native American petroglyph artwork are thought to be Paiute in origin, but little is known about them
The Second Wave at Sunset, Vermillion Cliffs. The Second Wave, a curiously-shaped sandstone swirl, takes on rich warm tones and dramatic shadowed textures at sunset. Set in the North Coyote Buttes of Arizona and Utah, the Second Wave is characterized by striations revealing layers of sedimentary deposits, a visible historical record depicting eons of submarine geology, Paria Canyon-Vermilion Cliffs Wilderness
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