Giant Pacific Octopus

The Giant Pacific Octopus is an amazing animal.  Here is the internal anatomy:

Source - Hatfield Marine Science Center

To watch an octopus in action, HMSC's Octo Cam:
http://hmsc.oregonstate.edu/visitor/octocam

A talk on Octopus Day that is on my list to watch

My favorite new website on cephalopods, which I have yet to spend the hours and days necessary to give justice to:

Cephalove

http://cephalove.southernfriedscience.com/