OCBuckWife
I am the evil monkey in your closet
A clam that lived on the seabed in the frigid waters off Iceland's north coast has been hailed as the longest-lived animal ever discovered.
Unfortunately, it had to be killed for it's growth rings to be counted and the discovery of its incredible age to be facilitated. I think that's the definition or irony, no?

On another note, I had NO IDEA freaking clams lived that long!