participates_in feces ENVO:00002003 ENVO:00002003 IDOMAL:002049 Undigested food residues and other discarded products of the midgut. droppings dung faeces frass idomal_namespace pellet excreta defaecation feces ENVO:00002003 ENVO:00002003 IDOMAL:002049 Undigested food residues and other discarded products of the midgut. droppings dung faeces frass idomal_namespace pellet excreta defaecation