Living picorocos. They move in a rather sinister way.
You may be asking yourself: What is that? Is that actually something related to eating? Indeed, it is. Chile has quite a few "interesting" seafood options, this being the most exotic one we tried. That's a photo of picorocos, also known as the giant barnacle. It's native to the coast of Peru and Chile. It appears to be a rock with an alien living inside. It tastes a bit like crab, but more savory than sweet. It is a pain in the arse to get out of the shell (the rock is not a natural rock, but a shell made by the barancle). As far as wild seafood go, this is as odd as I've ever eaten! Here's a photo of the whole thing out of its shell.