Sailfish is lethal d'Artagnan of the deep

Blink and you'll miss it. In fact, you'll miss it even if you don't blink: the Atlantic sailfish can kill so fast, its hunting strategy is briefly invisible to the naked eye. Only through high-speed video footage was the fish revealed to perform swordplay with its bill that would put even the most skilled swordsman to shame.

LINK (via: Zoologger)