4. Megamouth shark
Apologies for this photo of a dead shark; images of megamouth sharks are few and far between. Discovered in 1976 when an individual collided with a Navy research vessel, the megamouth’s name doesn’t disappoint. Its massive maw, with jaws covered in hook-like teeth, is perfect for the animal’s filter-feeding. The megamouth might be the most enigmatic species on this list, as not many specimens have been found. But that leaves room for more discovery!
