ur world in this photo-filled nonfiction book for budding young scientists. Does the spooky image of a bat scare you? These unusual mammals are good for much more than a fright. Bats help pollinate plants. They help keep pests away from crops. And the echolocation they use to find their way around has taught us a lot about navigation. With eye-catching photos, quick facts, and beyond-the-book back matter, Why Do We Need Bats? will have young researchers and science fans exploring more about the NATURE WE NEED. More Nature We Need: Why Do We Need Bees? Why Do We Need Trees? Why Do We Need Poop? Why Do We Need Rain? Why Do We Need Soil?