"Readers are shown examples of invasive snakes [and] frogs ... to reveal the pattern of species introduction and habitat takeover. Identifying the adaptations of species like the cane toad, the title teaches students to compare the strengths and weaknesses of Earth's animals. The susceptibility of habitats such as Florida's emphasizes the delicacy of the food chain. By analyzing and comparing cases of invasive species, readers discover how humans impact the natural world and the work that must be done to keep the balance"--Provided by publisher.
