The lugworm is a type of marine worm found in sandy and muddy coastal environments. It is known for its long, cylindrical body, which can grow up to 10 inches in length. Lugworms play a vital role in the ecosystem by aerating the sediment and serving as a food source for various animals, including birds and fish. Lugworms create U-shaped burrows in the sand, where they live and feed on organic matter. They are often used as bait by anglers due to their abundance and effectiveness in attracting fish. Their scientific name is Arenicola marina, and they are commonly found in intertidal zones around the world.