Trilobites: It’s Better to Swim Alone, Yet Together, if You’re a Salp Although they form chains to swim as a collective, these gelatinous marine organisms use uncoordinated strokes when not in danger, a study finds. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Sketchbook | Graphic Review: A Graphic Tribute to a Classic Work of Paleontological LiteratureCrows Are Taught to Pick Up Trash at French Theme ParkQ&A: Companions for City TreesClimate Has a Role in Wildfires? No. Wait, Yes.How to see Venus at night this week: Brightly lit Venus at GREATEST eastern elongationCall for smoke ban in the home to protect children