The pronghorn is distributed across North America (Canada, the United States, Mexico) and inhabits open grasslands and areas up to 3,350 m in elevation. Body length is 1.1–1.4 m, shoulder height 80–90 cm, with males larger; the distinctive horns have sheaths that are renewed annually. It feeds mainly on plants and digests by means of rumination. It has excellent vision and, when threatened, raises the white hair of its tail to warn conspecifics. Breeding occurs in autumn; gestation is about eight months, producing one to two offspring that begin walking within a short time after birth. Overall population has recovered and the IUCN assesses it as Least Concern, but some subspecies are in serious trouble in certain regions.