Pascal Kobeh / Zebra / Leopard shark (Stegostoma varium) resting on sea floor, Maldives. Indian Ocean.

Pascal Kobeh / Zebra / Leopard shark (Stegostoma varium) resting on sea floor, Maldives. Indian Ocean.

Pascal Kobeh / Zebra / Leopard shark (Stegostoma varium) resting on sea floor, Maldives. Indian Ocean.

Pascal Kobeh / Female diver above Zebra / Leopard shark (Stegostoma varium) resting on sea floor, Maldives. Indian Ocean. March 2013.

Alex Mustard / A captive Zebra shark (Stegostoma fasciatum / varium) portrait, in Brighton Sealife Centre, Brighton, England, UK.

Alex Mustard / A captive Zebra shark (Stegostoma fasciatum / varium) portrait, with diver behind, in Brighton Sealife Centre, Brighton, England, UK. Brighton Aquarium is the world's oldest operating public aquariu...

Alex Mustard / A Zebra / Leopard shark (Stegostoma fasciatum /varium) swimming over a reef at dawn. Sipadan Island, Sabah, Borneo, Malaysia. May

Alex Mustard / A captive Zebra shark (Stegostoma fasciatum / varium) portrait in Brighton Sealife Centre, Brighton, England, UK.

Juergen Freund / Zebra shark (Stegostoma fasciatum) newly hatched from egg case, Indo-pacific

Juergen Freund / Zebra shark (Stegostoma fasciatum) newly hatched from egg case, Indo-pacific

Jeff Rotman / Aquarium Scientists inject antibiotic into Zebra shark (Stegostoma fasciatum) in aquarium, Manly Oceanworld, Sydney, New South Wales, Australia.

Doug Perrine / Zebra / Leopard shark {Stegostoma fasciatum} Layang Layang atoll, Malaysia