Help celebrate Public Lands Day at our new headquarters and Nature Shop in downtown Custer S.D. Coyote howls, yips, and barks: they're actually saying something. And that's just the start. Pronghorn can run 55 mph with more stamina than any other animal alive. They picked up that speed running from an American cheetah that went extinct thousands of years ago, and never lost it. A mountain lion can clear the length of a school bus in one jump. Join us for a 1.5 hour look into the hidden lives of the mammals sharing the Black Hills and other parts of North America with us. We'll walk through what these animals are actually doing out there, backed by slides and video, and you'll leave with a few stories you didn't have before. Whether you grew up here or you're visiting for the first time, The Secret Life of Mammals will leave you looking at the wildlife around you a little differently.