Invasion of the Bullfrogs

In many places in the world where bullfrogs have spread, there aren't predators to eat them so their population grows unchecked. In this book, readers will learn the definition of "invasive species" and discover through the bullfrog's story the harm these animals cause. Full-color photographs help readers identify bullfrogs, and informative fact boxes add more curricular details about conservation, habitats, and food chains. A concluding quiz checks understanding.