Close up of whole, uncooked fish - Zen Rial/Getty Images Sure, you're an adventurer when it comes to food, but fish eyes might be where you draw the line. Well, maybe it's time to move the goalpost.

When I was little, I learned to swim by diving for coins in the pool. It wasn’t easy seeing the coins underwater. It was blurry down there. I talked about how fish see with my friend Nora Hickey.