Portrait of a Pronghorn
Although the Pronghorn is not a true antelope, it is often referred to as such due to the close resemblance (American Antelope is one common name). It is the fastest land animal in the western hemisphere. With measured speeds of 55 mph it is second only to the cheetah but can sustain high speeds longer than a cheetah.
This particular buck was by himself and was quite curious. I exited my vehicle to watch him and to my surprise, he approached me as I talked to him in a gentle voice. I don't have much experience with pronghorns but my previous impression had been that they spook very easily so to have him approaching me was quite exhilarating. He was still on alert though, as moving my legs or arms too quickly had him checking his escape routes. I enjoyed his company for 15-20 minutes, thanked him for posing, climbed back in to my vehicle and he watched as I drove off.
Backroads of Southern Colorado, USA