Sea Stealth

So an octopus has eight legs, but it turns out they only really need two to walk. (Go figure?) What are they suppose to do with the other six? What about bundling them together to look like a coconut. Or how about letting 'em hang out all squiggly-like to look like some seaweed. Wohba! Good thing they live in the ocean or I'd be feeling pretty paranoid - did that shrub just move? (Thanks to David Nevin.)