Insects digest fecal waste: dung beetles
Dung beetles play an important role in nutrient cycling and soil generation because they feed on and bury feces.
"During parts of the year in India, dung beetles bury an estimated forty to fifty thousand tons of human excrement each day." (Crump 2005:73)
- Crump, M. 2005. Headless Males Make Great Lovers & Other Unusual Natural Histories. Chicago, IL: University of Chicago Press. 199 p.