1. Class: Mammalia

2. Order: Artiodactyla

3. Family: Antilocapridae

4. Genus Species: Antilocapra americana

5. Size: 90cm/3ft

6. Weight: 85 - 130lb (Adult males), 75 - 105lb (Adult females)

7. Description: The only species within the Antilocapridae family with unique features. It is reddish-brown or tan above and white below. The neck bears a short black mane and 2 white stripes across its anterior portion.

8. Life Span: Around 10 (wild) - 12 (captivity) years.

9. Reproduction: In the northern range, breeding occurs during a three-week period between mid-September and early October. In the southern part of the range, breeding occurs earlier in late July. Usually, females give birth to one young after their first pregnancy and to 2 young in subsequent pregnancies.

10. Gestation: 252 days.

11. Habitat: The pronghorn is found from sea level to 3353m in grassland and desert.

12. Diet: Depending on local resources, Pronghorn Antelopes usually survive with grasslands. In the summer, they feed on browse and sometimes winter wheat while in the winter they consume forbs. Also eat grasses, weeds. cacti, juniper, winterfat and chamiso. They are unlikely to drink much water unless the forbs or other vegetation they consume are low in water.

13. Predators: Coyotes, bobcats, mountain lions, golden eagles, and wild dogs are among does who prey on pronghorn. The number of Pronghorns who die due to preys differ due to the number of predators, Pronghorns, the habitat types and the ability of alternative food sources. The Pronghorn protects itself from these predators by its speed and exceptional eyesight.

14. Endangered Status: Endangered

15. Special features/Specialization: Pronghorn Antelopes have distinctive horns which are pronged and consist of a permanent bony core covered by an annually-shed keratinous sheath. These horn sheaths are shed each year in October-November. Large male horns can reach up to 12-20inches in length. The large, woolly undercoat is covered by coarse, brittle hairs. Adult males have a black mask and patches on sides of its neck while its horns extend past the tops of their ears. Females on the other hand don't have these black markings and often bear horns not pronged and no longer than the ears.

16. Social Organization: Large herds of up to 1000 individuals with different characteristics are seen in fall and winter. These groups break up into smaller groups segregated by sex in the spring and summer. Territory boundaries are set by scent-marks and males compete within each other to determine who owns the area.

17. Conservation Status: Due to their endangered status, the Pronghorns are listed under the CITES Appendix I, U.S. E.S.A and IUCN Endangered.

18. Behaviors: These animals can reach speeds up to 86km an hour, the fastest New World mammal. Usually inactive just after sunset and before sunrise, their movements are determined by the resources available, moving between 0.1km(spring/summer) to 9.7km (fall/winter) each day. Pronghorn Antelopes are able to give out signals and sounds such as bleats, grunts, roars, blowing their nostrils and erecting their hairs as warnings.

19. Population Areas: Southern Alberta and southern Sasketchewan, Canada through the western United States to Hidalgo, Baja California, and western Sonora, Mexico. Presently the numbers are dwindling between 1000-1200 animals.