More than 600 species have become extinct in the last 400 years, and, while there are many reasons for this alarmingly high number, the influence of human behavior is undeniable. This beautifully illustrated book thoughtfully examines many at-risk species, and the principal threats to their well-being, at the same time empowering students to get involved in conservation efforts. Objective text, clear charts, and graphs weigh the causes and effects of human behavior on animal habitats, while also touching on the animal adaptations and human intervention that have brought certain species back from the brink of extinction.