Pronghorn Pair, Wind Cave National Park, South DakotaDuring the breeding season, male pronghorn establish and defend territories, while females carefully select mates and later raise their fawns in the open grasslands. A paired male and female offer a glimpse into the social dynamics of a species whose speed and endurance evolved to outrun predators long vanished from the American West. I took this photograph back in June of 2014 in Wind Cave National Park in South Dakota. Nikon D800 with Nikkor 200-400mm lens (at 300mm) ISO 400, f/4 at 1/1000th of a second.