The hairy frogfish is a type of fish that's covered in spines.

Hairy Frogfish (Antennarius striatus) are one of those fish that make you stare and think “Why?”, “How?” or alternatively just “Huh?”. Besides being a Frogfish (which is reason enough to be interesting), they often are – as the name suggests – HAIRY. Yup, you’ve read that correct: a fish with hair on it. Or at least something resembling hair. To prove my point, here is a shot of a prime specimen: