Ears

I was about eight or nine when I first noticed that old people had big ears - maybe not so much big, as in sticking out from their head, but really, really long. And the older they were, the bigger their ears. I'd notice it especially at church, when the sermon was long and boring, or when I'd have to go to a wake where there were a lot of old people and I was supposed to behave, but I had nothing to do but look around while my parents gabbed endlessly with other mourners. I thought at the time that I could be a pretty good predictor of who would live to reach a ripe old age - just look for people with big ears.
It was much later that I heard or read that ears continue to grow as a person gets older. So, rather than being a predictor of longevity, they are merely a record of it.
I never thought much about my own ears. They seemed to be pretty normal. Recently, I've started to notice that they're getting pretty big.