Worms are small, soft-bodied creatures that live in soil, water, and decaying organic matter. They play a vital role in the ecosystem by breaking down dead plants and animals, which helps enrich the soil. One of the most common types of worms is the earthworm, known for its ability to aerate the soil and improve its structure. These fascinating creatures have no eyes but can sense light and vibrations. Worms move by contracting and relaxing their muscles, allowing them to burrow through the ground. They are also a food source for many animals, including birds and small mammals, making them an important part of the food chain.