What Is the Longest Worm in the World?

The bootlace worm, Lineus longissimus, is as thin as a pencil but can grow as long as a blue whale. Learn about it in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/marine-life/bootlace-worm.htm Learn more about your ad-choices at https://www.iheartpodcastnetwork.com