Journey through the digestive systems of humans, farm and wild animals, and meet some of nature's ultimate recyclers as they eat, breed in and compete for dung. The fall of bodily waste onto the ground is the start of a race against the clock as a multitude of dung-feeders and scavengers consume this rich food source. From the enigmatic dung-rolling beetles to bat guano and giant elephant droppings, dung creates a miniature ecosystem to be explored...