This sounds like a bad Mainer joke, but it's true according to this article: Lobster serves as role model for new x-ray device. From the article:
Technology based on the crustacean's uncanny ability to see through dark, cloudy, deep sea water is guiding scientists funded by the government in the early stages of developing a ray that one day could be used by border agents, airport screeners and the Coast Guard.
Phew. When I first ran across this one, I had a horrible image of TSA agents waving lobster claws to hand-scan air passengers...