These are lenses from the eyes of a Colossal Squid. These eyes are the largest known in the animal kingdom.
Throw man into this mix. I can only hope that one day nature hands our asses back to us on a plate and bump us a wee lower on the food chain. Heh heh… back to the sea kiddos. Back to sea.
More on Colossal Squid and less on my idiotic ranting here:
http://news.bbc.co.uk/2/hi/science/nature/7374297.stm