Sometimes, it seems like there's no hope for the planet. Thousands of species go extinct every year, and climate change is closing in. But famed biologist Jane Goodall says she refuses to give up.
In her latest book, Hope for Animals and Their World: How Endangered Species Are Being Rescued from the Brink, she writes, "There are surely plants and animals living in the remote places beyond our current knowledge. There are discoveries yet to be made."
