Pronghorn | Lamar Valley | Yellowstone National Park

Pronghorn  |  Lamar Valley  |  Yellowstone National Park


I photographed this Pronghorn in the Lamar Valley of Yellowstone National Park. It can run exceptionally fast, being built for maximum predator evasion through running, and is generally accepted to be the fastest land mammal in the Western Hemisphere.


Pronghorns form mixed-sex herds in the winter. In early spring the herds break up with young males forming bachelor groups, females forming their groups and adult males living a solitary life. There are female bands which share the same summer range and bachelor male bands form between spring and fall.


NatureWurks/Pat Cocciadiferro

Cougars, wolves, coyotes and bobcats are the major predators. Golden Eagles have been reported to prey on fawns.

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