My parents bought this book in the early 50s on our trip to Yellowstone Park, and my mom read it to us several times, as we kept asking for it. Later, I had the same worn and cherished copy and read it to my own kids, who also loved it. Now I'm buying copies for them for Christmas, so they can read it to my grandkids. It's not only a highly entertaining animal story, but it teaches children a lot about the natural world, as well. When Cubby and his mother visit Yellowstone Park in the summer, he is introduced to the whole array of animals who live in the park, and learns about their habitats and their ways. Fun, and a great learning tool.