A detritivore is an organism that feeds on dead organic matter, such as decaying plants and animal remains. These creatures play a crucial role in ecosystems by breaking down this material, which helps recycle nutrients back into the soil. Common examples of detritivores include earthworms, fungi, and certain types of insects. By consuming detritus, detritivores contribute to the decomposition process, making nutrients available for other organisms, such as plants. This process is essential for maintaining healthy ecosystems, as it supports soil fertility and promotes biodiversity.