The pronghorn is the fastest North American mammal, capable of sprinting up to forty miles (60 km) per hour and maintaining speeds of thirty miles (45 km) per hour.
It lives in small scattered groups in the summer, but in winter herds of up to a hundred may converge, foraging for grasses, weeds, shrubs, and forbs.
When a pronghorn is alerted to danger, the white hairs on its rump will stand erect, signaling the others to flee.
Both male and female have horns but the male's are larger.
During breeding season, the male marks its territory with droppings and urine, and violently defends its harem against all rivals.
Name: Pronghorn (Antilocapra americana)
Family: Antilocapridae (Pronghorn)
Range: Western North America into Mexico
Habitat: Grassland, open prairie, and desert
Diet: Browse, forbs, bunchgrass, sagebrush, cactus, and other vegetation
Head and Body Length: 3 to 5 feet (1 to 1.5 m)
Tail Length: 3 to 4 inches (7 to 10 cm)
Shoulder Height: 31.5 to 39 inches (80 to 100 cm)
Weight: 77 to 154 pounds (35 to 70 kg)
Life Cycle: Mating September to October, earlier in southern locales; gestation 230 to 250 days, usually two young born
Description: Reddish-brown to tan coat; white underside, face, rump and neck bands; males have a black mask and neck patches; large, protruding eyes; pronged horns; deer-like body
Conservation Status: Not listed by the IUCN.
 Order: Artiodactyla, Family: Bovidae The Tibetan antelope, or Chiru, is endemic to the Tibetan Plateau. It is found between Ngoring Hu in China and the Ladakh region in India. Its range once extended to western Nepal, but none have been seen in Nepal for several years.
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 The edmi, also known as the mountain gazelle, lives in mixed-sex herds of up to forty individuals.
They roam their arid habitat eating almost anything green.
In mid-winter, the males establish territories that they defend from rivals.
The male is generally larger than the female and has S-shaped horns more than twice as big.
Like all gazelles, the edmi is a slender, graceful animal with ...
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 Red hartebeest vary in color from rich reddish brown to yellowish fawn, with a darker saddle from the shoulders to the base of the tail, broadening out over the rump.
The top of its muzzle and forehead are black, and it has a black stripe on the front of its shoulders that continues down onto its forelegs, and black high on its hind legs (Liechtenstein's hartebeest lacks these markings.). ...
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 Thomson's gazelles are mainly grazers, feeding on grasses, herbs, and leaves of plants in the open plains. Their herds, which are composed of a dominant male, females, and their young, contain anywhere from five to fifty individuals.
The dominant male marks off his territory with urine and feces and regularly patrols its perimeter to keep his herd together. When he meets another male, they...
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 Herds of ten to forty gemsbock are not uncommon and groups of up to a hundred have been recorded.
These animals are frequently found in association with other species of gazelles and sometimes zebras, foraging for grasses and leaves.
Gemsbock can go many days without water, but in the more arid parts of their range, they sometimes dig a trough in a dried-out river bed to reach the water tabl...
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 Order: Artiodactyla, Family: Bovidae Ethiopian: Throughout central Africa, from south of the Sahara to north of the Kalahari deserts.
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