Despite dire warnings for our endangered planet, Jane Goodall says all is not yet lost - we can change course if we act now. And she should know. Her tough-minded optimism comes from her work as the world's foremost authority on chimpanzees in Tanzania's Gombe National Park. As a scientist and naturalist she has produced landmark studies of animal behavior that led to revolutionary insights into the evolution of human life. Now, traveling 300 days a year, she has become a global advocate for all life, challenging everyone to see ourselves as caretakers of the planet. Her new book Hope for the Animals and Their World features the heroic work of men and women working around the world to protect and preserve the Earth.