When visitors to Wyoming's National Parks think about the exciting things they will see, it's likely that the first things that come to mind are bison, bears, wolves, moose, deer, and antelope. That's usually because the average park visitor wants the superstar animals in the park and forgets about their little buddies. In Yellowstone and Grand Teton National Parks, there are over 60 species of mammals. The Overlooked Creatures of Wyoming's National Parks. Top 25 Wild Mammals That Call Wyoming Home Wyoming is home to well over 100 mammal species.