While walking the pier at Fort DeSoto Park recently I watched a fisherman reel in this Southern Flounder (Paralichthys lethostigma).

This species is considered the top bottom-dwelling predator. Their technique is simple, they bury themselves in the sand, something they are ideally camouflaged for, and wait for prey to swim overhead.

What makes this method work so well is their migrating eye. Flounders start life with one eye on each side of their head, like normal fish. As they age, and settle into their benthic feeding routine, the right eye migrates to join the left giving them exceptional one-sided vision.