Elk may have the biggest antlers, but Bison take first prize for mass.
Bison have long been known as a symbol of American freedom, though theirs has ironically decreased dramatically since the arrival of European settlers. According to the Department of the Interior, Yellowstone National Park is the only area where these animals have lived, undisturbed, since before recorded history.
Bison bulls can grow to weigh a full ton at adulthood, and as tall as 6 feet.
These majestic creatures have been protected by the DOI since before the Civil War, and today number somewhere around 10,000 in North America.
9. Pronghorn Antelope
They have an interesting look, if you can find one. The pronghorn antelope, once mentioned in works like David Armstrong’s Rocky Mountain Mammals, or Milton Estes’ writings in the 1860s, have suffered scarcity throughout the 20th and beyond.
According to the National Parks Service, sightings have been reported south of the Rocky Mountains, and elsewhere in Colorado, as late as 1994. It’s theorized that they may have moved further up into the mountains, as drought conditions have made finding water a challenge.
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