Pete Oxford / Whale Shark (Rhincodon typus) close up of spotted skin, with Golden trevally (Gnathanodon speciosus) Cenderawasih Bay, West Papua, Indonesia.

Alex Mustard / A captive Zebra shark (Stegostoma fasciatum / varium) portrait, with diver behind, in Brighton Sealife Centre, Brighton, England, UK. Model released, not property released

Doug Perrine / Zebra / Leopard shark {Stegostoma fasciatum}. Malaysia

Fred Bavendam / Zebra Shark (Stegostoma fasciatum), Andaman Sea, Thailand

Pascal Kobeh / Zebra / Leopard shark (Stegostoma varium) swimming away from the bottom, New Caledonia, Pacific Ocean.

Pascal Kobeh / Zebra / Leopard shark (Stegostoma varium) swimming away from the bottom, New Caledonia, Pacific Ocean.

Jeff Rotman / Zebra Shark (Stegostoma fasciatum) underside showing mouth, teeth, barbels, ampullae of Lorenzini (natural electrical detectors located in the heads of sharks and rays which are sensitive to the elect...

Doug Perrine / Zebra shark (Stegostoma fasciatum) detail of lower jaw teeth used for crushing shells of molluscs and crustaceans, and for grasping small fish, Birch Aquarium, La Jolla, California, USA

Tony Wu / Zebra shark (Stegostoma fasciatum) lying on sandy bottom at a reef located in Wolverine Passage, part of the Barrier Reef of Papua New Guinea

Tony Wu / Zebra shark (Stegostoma fasciatum) swimming up from sandy bottom at a reef located in Wolverine Passage, part of the Barrier Reef of Papua New Guinea

Jordi Chias / Zebra / leopard shark (Stegostoma fasciatum) swimming over the reef, Vaavu atoll, Maldives, Indian Ocean

Pascal Kobeh / Close-up of a leopard shark or zebra shark (Stegostoma fasciatum) Maldives, Indian Ocean.