I am always in awe when I am near bison, especially a huge bull. So strong and powerful. I shot this image as it followed a cow around with a single minded purpose.

Bison

Bison portrait, Vermejo Park Ranch, New Mexico, USA. Canon 1Dx. 200-400mm lens with 1.4x. ISO 500. 1/400 sec. at f.5.6. EV – 1/3.