11. Hatchetfish
These scary looking fish have huge, bulbous, opaque eyes with a sleek, sliver body. The fish range in size from tiny critters of one inch to giant relatives. The bigger the hatchet fish type, the more aggressive of a predator the fish will be. They use their shiny coats to blend in with the light from above so they can lurk above their prey undetected. I wouldn’t want to be on a giant hatchet fish’s radar.