Discover why poop is an important resource in this photo-filled nonfiction book for budding young scientists. Ever ask yourself, "Do we really need poop?" Well, the answer is.YES! In this Pebble Explore book, discover how this not-so-lovely part of nature is essential to our world. In fact, we need poop to help crops grow and replenish soil. Certain animals even eat poop for nutrients! With eye-catching photos, quick facts, and beyond-the-book back matter, Why Do We Need Poop? will have young researchers and science fans exploring more about the NATURE WE NEED. More Nature We Need: Why Do We Need Bats? Why Do We Need Bees? Why Do We Need Soil? Why Do We Need Rain? Why Do We Need Trees?.