Planet Earth needs our help, and children are naturals at pitching in for a good cause. To foster a commitment to the planet, it's important for children to learn about the natural world. From plant life to animals, weather patterns to the seasons, our planet offers endless learning and inspiration. The books below focus on migration of birds and butterflies in North America, teaching about the habits of these amazing animals, the way humans have disrupted their populations, and how we can create change to help them thrive.