Are you ready to discover sizes in Yellowstone National Park? Small animals, BIG animals, and every size in between! Many animals live in Yellowstone. EDUCATIONAL: Everyone loves the BISON when visiting Yellowstone National park, so this book explores animals of all sizes. - Discover fun facts about 22 mammals, from the smallest Montane Vole to the biggest Bison - This book notes what each animal eats and shows what their footprint looks like ENGAGING: A scale at the top of each page shows where the animal is on the scale in comparison to the Montane Vole and the Bison - Detailed illustrations show a very lifelike depiction of what each animal looks like Yellowstone National Park: Yellowstone National Park was the first National Park, established in March 1872 - Located in the corners of Montana, Wyoming, and Idaho, Yellowstone protects and preserves a unique diversity of plants and animals like the ones discovered in this book! *Cover Changed March 2023*