Yellowstone is a great park to capture photos of animals in the landscape. Pronghorn seem to be more and more common at Yellowstone and provide nice subjects for such shots. I remember ten or more years ago definitely not seeing as many as I see now. This young lady was taking a look back at the rest of the herd while the sun started to inch down toward the horizon behind me.
Nikon D810 with Nikkor 200-400mm lens (at 200mm) ISO 800, f/4 at 1/2500th of a second