Pronghorn, a game animal of western North America. It is also called the American antelope, although it is not a true antelope. The pronghorn is named for its erect, slightly curved horns, which have short prongs that project forward. The horns, 15 inches (38 cm) long, are present in both sexes. The outer sheaths of the horns are shed in autumn.The pronghorn grazes in small herds on open grasslands.
The pronghorn is about three feet (90 cm) tall and weighs 100 to 125 pounds (45–57 kg). It is pale tan above and white below, with a large white rump patch and two broad white bands across the throat. The pronghorn grazes in small herds on open grasslands. It is the swiftest North American mammal, reaching speeds of more than 50 miles per hour (80 km/h) for short distances.
An intensely inquisitive animal, the pronghorn is easily lured by hunters. The number of pronghorns, estimated at 40,000,000 in the mid-19th century, was reduced to 30,000 by 1925. Since then, hunting has been rigidly controlled, and the number of pronghorns has steadily risen.
The pronghorn is Antilocapra americana. It is the only member of the family Antilocapridae.