Quote Originally Posted by Hosakawa Tito
I believe the only thing approaching bone on a squid is the beak, made from keratin, like your fingernail.

Humbolt Squid
I watched a program on these a couple of months ago. They have been known to attack and kill humans. The fisherman who hunt them sometimes end up on the squid's menu.
Those may well be the coolest critters in the world...