First, why not liven up this page with some gratuitous squid imagery? Below are some of our freshly caught specimens.
Mine was an immature female Loligo vulgaris. Here's a shameless shot of the mouth and beak:
Here's the specimen cut through the head to show the strange arrangement of the brain and esophagus:
Now the question is, if molluscs can be made in almost every variety, from bivalves, to snails, cephalopods, and everything else in between - why must they all have their brains made in this exact same way? What is it, other than history, that makes the brain (or central ganglion in this case) of, say, a monoplacophoran arranged in the same way as the squid above, while a vertebrate has to be made in a totally different way.
Okay, enough implied polemics against ID. Enjoy the squid brain!