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