These are some of the largest salps (a type of pelagic tunicate) on the planet and they essentially act like swimming vacuum cleaners filtering a massive volume of water. Living inside of them are small crustaceans called amphipods which are hitching a ride inside a marine space ship. The ocean is so weird. #hitchhiking #amphipod #tunicate #salp #nerd #marinebiology #invertebrates @mbnms @mlmlmarinesci
