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Pronghorn in the field of Yellowstone National Park, Wyoming in Yellowstone National Park, Wyoming, United States
Big Horn sheep herd at Grand Teton National Park in Wyoming, western USA, North America.
Pronghorn in Yellowstone National Park in Autumn
Pronghorn antelope in Yellowstone National Park
The Pronghorn (Antilocapra americana) is a species of artiodactyl (even-toed, hoofed) mammal native to interior western and central North America. Although it is commonly thought of and called an antelope it is not a true antelope.  The pronghorn is the only surviving member of the Antilocapridae family and has been in North America for over a million years. The pronghorn has a similar body shape to a deer but stockier and shorter legged.  Both males and females grow horns but the male horns are larger.  The horns are shed each year as the new horns grow from underneath.  The pronghorn weighs between 90 and 120 pounds and stands about 3 1/2 feet tall at the shoulder.  It has a tan to reddish brown body with white markings throughout.  The pronghorn is the fastest land mammal in the Western Hemisphere.  Its great speed enables the pronghorn to outrun most predators.  Pronghorns are migratory herd animals.  Their migration routes have been threatened by fencing and fragmentation of their habitat.  Pronghorns cannot jump over traditional barb wire fences like deer and elk can.  They try to pass underneath and sometimes get caught in the fencing.  Newer types of fencing have plastic pipe under the bottom strands which allows the animals to pass through.  Pronghorns are quite numerous and in some areas like Wyoming and northern Colorado the pronghorn population at times has exceeded the human population.  This pronghorn was photographed on Antelope Ridge in the National Bison Range near Charlo, Montana, USA.
a pronghorn antelope buck and does during the rut in the Wyoming desert in autumn
Pronghorn buck near Antelope Flats in Grand Teton National Park
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Pronghorn (Antilocapra americana) with atumn background colors in Lamar Valley, Yellowstone National Park.
Female antelope or pronghorn running looking for a good place to give birth, in wild Montana, USA, North America.
Single antelope in Gillette Wyoming, background prarie and sage brush
Thunder Basin National Grassland, Wyoming, USA: female pronghorn standing in the snow - The pronghorn (Antilocapra americana) is a species of artiodactyl (even-toed, hoofed) mammal indigenous to interior western and central North America. Though not a real antelope, it is often called the American antelope, prong buck, pronghorn antelope and prairie antelope.
Pronghorn standing in a field in the Lamar Valley, Yellowstone National Park.
Pronghorn antelope in Yellowstone National Park
Pronghorn antelope in the foothills of the Wind River Range near Pinedale, Wyoming
Pronghorn Antelope in Eastern Idaho.
a pronghorn antelope buck during the fall rut in Wyoming
Fast running antelope (or pronghorn) in the Montana prairie, in northwestern USA of North America.
Pronghorn Antelope
Pronghorns are among the fastest land animals in North America, capable of reaching speeds up to 55 mph. They are known for their impressive long-distance migrations, traveling up to 150 miles between summer and winter ranges. Despite early 20th-century population declines, conservation efforts have helped pronghorns rebound, making them a notable presence in the park's diverse ecosystem. Despite often being called \
Wild Tibetan Antelope
A male pronghorn grazes in a field with autumn colors in Grand Teton National Park.
Pronghorn, Yellowstone National Park, Wyoming, USA
Pronghorn Antelope in East Central Idaho.
Ba pronghorn antelope buck on the prairie
Pronghorn or antelope standing, close up on hill in the Yellowstone Ecosystem of western USA, North America. Nearest cities are Denver, Colorado, Salt Lake City, Cody, Jackson, Wyoming, Gardiner, Cooke City, West Yellowstone, Bozeman and Billings, Montana.
A Pronghorn in Yellowstone National Park
One pronghorn antelope on a hillside in Yellowstone National Park
Artiodactyl mammal chilling in green pasture of the preserve park
Pronghorns are among the fastest land animals in North America, capable of reaching speeds up to 55 mph. They are known for their impressive long-distance migrations, traveling up to 150 miles between summer and winter ranges. Despite early 20th-century population declines, conservation efforts have helped pronghorns rebound, making them a notable presence in the park's diverse ecosystem.
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