A complete guide to nature, the animal kingdom which inhabits it and how humans are dangerously affecting the natural ecosystem. Through dramatic multimedia presentations, You will learn what scientists have discovered about hundreds of species and plants and their habitats. These same species, so vital to the ecosystem balance, have become threatened to the point of extinction across the globe. Learn about their plight and the work of dedicated conservationists who struggle to save their lives both in their native environment and in rescue operations at wildlife habitats in zoos.