I'm willing to bet you've seen footage of a little fish attached to a very big fish like a shark. It's called a remora, and while it may be a parasite, it's actually got a lot going for it. For instance, it doesn't attach by suctioning with its mouth—instead, it wears a suction cup for a hat. True story. Find our more in this week's episode of Absurd Creatures!

And I’m happy to hear from you with suggestions on what to cover next. If it’s weird and we can find footage of it, it’s fair game. You can get me at matthew_simon@wired.com or on Twitter at @mrMattSimon.