I was out shooting bighorns during their fall rut season. Sheep don't usually do too much moving around; they spend most of their time eating and sleeping. But during the rut, or their mating, season, the action can get pretty heated with head butting, lip curls and following ewes around the mountains. This one cloudy afternoon I had a slow shutter speed to accommodate the low light—remember, the sheep don't do much—when all of a sudden one of the rams started charging down the mountainside after a ewe. I didn't have a chance to change my settings but the resulting shot was a rare one showing some implied speed for an otherwise lethargic animal.