The Pronghorn (Antilocapra americana), also known colloquially in North America as the pronghorn antelope, prairie antelope, or simply antelope because it closely resembles the true antelopes of the Old World and fills a similar ecological niche due to parallel evolution even though it is not an antelope, is a species of artiodactyl mammal indigenous to interior western and central North America. It is the only surviving member of the family Antilocapridae. During the Pleistocene period…

Pronghorn definition: A ruminant mammal (Antilocapra americana) of western North American plains that resembles an antelope, has forked horns that are shed and regrown annually, and is noted for its speed.

Pronghorns are built for speed. Everything about them is geared towards moving fast over long distances. They are the fastest animal on the planet for a sustained top speed. I think they’re my favorite North American animal, at least on hooves. I can spend all day watching them. I only wish they didn’t live so darned far from me. This male was just outside the north entrance of Yellowstone National Park, in Gardiner, Montana. by eaross

Pronghorn Antelope (Antilocapra americana), National Bison Range, 3 miles N of St, Ignasius, Montana. 13 October, 2011. Slide # GWB_20111013_2930.CR2

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During an early morning feeding I was able to blind-side the antelope and get very close. I had no time change lens (I do not use zoom lens for wildlife) as I only shot these guys with either my 300 F/2.8 APO or in this case my 600 F/4 APO - both Minolta lenses I owned new since day-one and they're 18 years old and still shoot rock solid, - CV=Chino Valley, AZ

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