THIS IS A REAL LIVING THING. Spider crabs are the physical embodiment of every nightmare in the history of the world. It is a real live monster. When I see it sitting there, up against the glass at the aquarium, I can sense it fantasizing about eating my head. And I'll bet it would make that fake hissy movie spider noise when it attacks, too. WHAT KIND OF WORLD WOULD ALLOW SUCH A THING TO EXIST.
Worst. Creature. Ever.