Feces, is a waste product from an animal’s digestive tract expelled through the anus during defecation.
After an animal has digested material, the remains of it is excreted from its body as waste. Though it is lower in energy than the food it came from, feces may still contain a large amount of energy. This means that of all food eaten, a significant amount of energy remains for the decomposers of ecosystems.
Many organisms feed on feces, from bacteria to fungi to insects such as dung beetles, which can sense odors from long distances
Feces are also an important as a signal.