Detritovores are organisms that obtain nutrients by consuming detritus. Detritus is decaying organic matter and waste, which is all found in soil. An earthworm, like the one in this photo, is good example of a detritovore. They play the roll of decomposers, yet unlike other decomposers, they can ingest lumps of matter and then expel it. Detrivores contribute to the nutrient cycle by airing out soil and freeing up nutrients.