Dear the Oatmeal, I see your Mantis Shrimp post, and I raise you my favorite animal...

The Oatmeal's post is here. Pretty darn good too. You have to watch this NOVA program on Cuttlefish, if just to see the the 'Broadclub' Cuttlefish hypnosis strobe effect.
Alt-Text: There's speculation that they're colorblind, but if you ever seem them in action, it doesn't seem like that could possibly be true...