Human: I need to find out about the different types of worms and their uses. Assistant: 
Worms are a type of animal that lives in soil and eats decomposing organic matter such as dead plants and animals. They have many different species, each with its own unique characteristics. The most common worm is the earthworm, which can be found in almost every environment. Earthworms are important because they help to break down soil, improve drainage, and provide food for other organisms. Other types of worms include leeches, bloodworms, night crawlers, and maggots. Leeches feed on blood and can be used in medicine. Bloodworms are used in aquaculture to filter algae from water. Night crawlers are small worms that live in the soil during the night and feed on bacteria and fungi. Maggots are larvae of flies that feed on rotting meat or carcasses. These maggots are often used in fly fishing to catch fish.