Some worms are very small—about one millimeter, or the thickness of a dime. Other worms are quite long. One kind of Australian earthworm commonly grows to between six and nine feet in length. The longest kind of worm, known by scientists as Lineus longissimus, can grow up to 15 feet long and is found on coast of eastern England. Worms come in all sizes. Which supporting detail contains a statistic about the biggest worm?