Watch where you step Sometimes the animals in Yellowstone National Park are hard to find?but you can almost always find their poop Come along with Michael, Emily, and their family as they find poop (scat) and footprints (tracks) and discover which animal made them Who Pooped in the Park? Yellowstone National Park is an ideal tool for teaching young children about animal behavior, diet, and scats and tracks identification?it's the perfect companion for in the car or in the field on your next trip to Yellowstone. Fun illustrations of the animals and their scat and tracks supplement the charming story, and a quick-reference chart at the back will make field identification a breeze.