Tenticular Gesticulation

Check Out This Argonaut. (Jason's Whereabouts Unknown)

This is an Argonaut, also known as a Paper Nautilus. Although the female looks like a Nautilus, it is actually a pelagic octopus. The "shell" is actually a paper-thin egg case secreted by the female. The males are significantly smaller, and look like a normal octopus. This is just about the coolest thing I have seen all week.