You're going to need more butter. And a larger bib.

I heard this on NPR yesterday and have been haunted ever since:

Scientists don’t know the lifespan of lobsters, but apparently they’ve concluded that lobsters don’t really age: they don’t slow down or lose their appetites or grow crotchety when teenage arthropods throw clam shells at their houses. They just eat and molt their shells as they grow bigger. And if they avoid parasites and the insidious lobster trap, they can keep growing unabated. So, the scientist in the interview said, it’s not without the realm of possibility that somewhere on the ocean floor, there could be 100- or 200-pound lobsters. It's not likely, but it's not impossible. As someone who is skeeved out by animals that grow to inappropriate sizes (see catfish, Hogzilla, etc.), the very thought of this sends chills down my spine.

I don’t want to live in a world where I could be cleft in two by a giant lobster claw.