Flounders are flat fishes that don't lie on their bellies, but on one side. Their skulls twist as they grow, so that the eye that was originally on the underside migrates around the head, until both eyes come to lie close together on the side facing up, either left or right. Although this sounds a bit gruesome, their shape is perfect for hiding from predators by letting them speedily bury themselves in substrate on the bottom of the ocean if need be.
 
Next Level Tees, cotton/poly blend.