I want to introduce you Physalia Physalis, aka Portuguese Man-of-War, (la Carabela Portuguesa). Don't be confused, it looks like a jelly-fish but it is not. And it is not a one individual but a colonial of little organisms. Interesting, right? And here ends the marine biology class for today.
Just one advice: Do not touch the blue "legs" of this fluffy creature, ok? Never!