I don't care how rare it is. I'm flying to japan to go deep-sea diving so I can punch it in its stupid zombie shark face.
Big dumb grin, who's laughing now you lamprey ass motha fucka?
Did you guys see that? The ocean even hates its own swarm of terrors, and will ruthlessly eliminate them if they stray from those places Mother Ocean has decreed they should stay.
That thing was not born naturally. That thing was spawned off of the body of some nameless entity resting in the deep. That animal is a sign that this entity is going to wake up very soon.