Feces (or faeces; sg.: faex) are the solid or semi-solid remains of food that was not digested in the
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The distinctive odor of feces is due to skatole, and thiols (sulfur-containing compounds), as well as amines and carboxylic acids. Skatole is produced from tryptophan via indoleacetic acid. Decarboxylation gives skatole. … See more

After an animal has digested eaten material, the remains of that material are discharged from its body as waste. Although it is lower in energy than the food from which it is derived, feces may retain a large amou… See more

Depending on the individual and the circumstances, human beings may defecate several times a day, every day, or once every two or three days. Extensive hardening of the feces that interrupts this routine for … See more

The feces of animals, e.g. guano and manure, often are used as fertilizer.
Dry animal dung, such as that of camel, bison and cattle, is burned as fuel in many countries.
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In all human cultures, feces elicit varying degrees of disgust in adults. Children under two years typically have no disgust response to it, suggesting it is culturally derived. Disgust toward feces appears to be stronge… See more