Chien Lee / Burbidge's Pitcher Plant (Nepenthes burbidgeae) pitcher, Sabah, Borneo, Malaysia

Chien Lee / Burbidge's Pitcher Plant (Nepenthes burbidgeae) pitcher, Sabah, Borneo, Malaysia

Chien Lee / Burbidge's Pitcher Plant (Nepenthes burbidgeae), Kinabalu National Park, Borneo, Malaysia

Nick Garbutt / Painted / Burbidge's pitcher plant (Nepenthes burbidgeae) Mount Kinabalu, Borneo, endangered species

Alex Mustard / Tawny nurse shark (Nebrius ferrugineus) group, individuals circling each other at dusk. Vavuu Atoll, Maldives. Indian Ocean.

Doug Perrine / Tawny nurse shark asleep under coral reef ledge {Nebrius ferrugineus} Burma Banks, Thailand, Andaman Sea (Non-ex).

Rick Price / Tawny nurse shark (Nebrius ferrugineus) at water surface. Talbot Bay, The Kimberley, Western Australia.

Rick Price / Tawny nurse shark (Nebrius ferrugineus) below water surface. Talbot Bay, The Kimberley, Western Australia.

Alex Mustard / Tawny nurse shark (Nebris ferrungineus) patrols a coral reef at night. Vavuu Atoll, Maldives. Indian Ocean

Alex Mustard / Tawny nurse shark (Nebrius ferrugineus) at night. Vavuu Atoll, Maldives. Indian Ocean.

Alex Mustard / Tawny nurse shark (Nebrius ferrugineus) at night. Vavuu Atoll, Maldives. Indian Ocean.

Alex Mustard / Tawny nurse shark (Nebrius ferrugineus) group at night. Vavuu Atoll, Maldives. Indian Ocean.

Jordi Chias / Tawny nurse shark (Nebrius ferrugineus) Vaavu Atoll, Maldives, Indian Ocean.

Pascal Kobeh / Tawny nurse shark (Nebrius Ferrugineus) Bijoutier, Seychelles. Indian Ocean.

Juergen Freund / Tawny nurse shark (Nebrius ferrugineus) swimming above sand flat, Great Barrier Reef, Queensland, Australia.

Pascal Kobeh / Two nurse sharks (Nebrius ferrugineus) resting on sea floor, Maldives. Indian Ocean.

Pascal Kobeh / Two nurse sharks (Nebrius ferrugineus) resting on sea floor, Maldives. Indian Ocean.

Pascal Kobeh / Diver near two Nurse sharks (Nebrius ferrugineus) resting, Maldives. Indian Ocean. April 2013.

Pascal Kobeh / Diver near two Nurse sharks (Nebrius ferrugineus) resting, Maldives. Indian Ocean. April 2013.

Francis Abbott / Tawny nurse shark {Nebrius ferrugineus} swimming over coral reef, Indian Ocean

Francis Abbott / Tawny nurse shark {Nebrius ferrugineus} swimming over coral reef, Indian Ocean

Doug Perrine / Tawny nurse shark {Nebrius ferrugineus} amongst tropical fish, Andaman Sea, Thailand

Mike Parry / Tawny Nurse Shark (Nebrius ferrugineus), Great Barrier Reef, Queensland, Australia

Mike Parry / Tawny Nurse Shark (Nebrius ferrugineus), Great Barrier Reef, Queensland, Australia

Juergen Freund / Tawny nurse shark eye, close-up {Nebrius ferrugineus} Indo Pacific

Francis Abbott / Pregnant Tawny nurse shark, {Nebrius ferrugineus} Anderman Sea, Indian Ocean

Tom Vierus / Group of Tawny nurse sharks (Nebrius ferrugineus) and Bull sharks (Carcharhinus leucas) congregating at baited dive site, Shark Reef Marine Reserve, Serua Province, Fiji, Pacific Ocean.

Tom Vierus / Tawny nurse shark (Nebrius ferrugineus) with a fishing hook in its mouth, head portrait, Shark Reef Marine Reserve, Viti Levu, Fiji, Pacific Ocean.

Sergio Hanquet / Two Nurse sharks (Nebrius ferrugineus) swimming over coral reef and seabed, Maldives, Indian Ocean.

Sergio Hanquet / RF - Nurse shark (Nebrius ferrugineus) resting on seabed at night, Maldives, Indian Ocean. (This image may be licensed either as rights managed or royalty free.)

Alex Mustard / Pair of Tawny nurse sharks (Nebrius ferrugineus) resting on the seabed at night with Golden trevallies (Gnathanodon speciosus), Vavuu Atoll, Maldives, Indian Ocean.

Alex Mustard / Tawny nurse shark (Nebrius ferrugineus) at dusk, portrait, Vavuu Atoll, Maldives, Indian Ocean.

Alex Mustard / Two Tawny nurse sharks (Nebrius ferrugineus) on seabed at dusk, Vavuu Atoll, Maldives, Indian Ocean.

Alex Mustard / Three tawny nurse sharks (Nebrius ferrugineus) swimming over a coral reef at dusk, Vavuu Atoll, Maldives, Indian Ocean.

Sirachai Arunrugstichai / Tawny nurse shark (Nebrius ferrugineus) resting in a small cave during the day, Mu Koh Similan National Park, Andaman Sea, Phang-nga, Thailand.

Henley Spiers / Tawny nurse shark (Nebrius ferrugineus) followed by a school of Brassy chub (Kyphosus vaigiensis), Vaavu Atoll, Maldives, Indian Ocean.

Sirachai Arunrugstichai / Tawny nurse shark (Nebrius ferrugineus) in the evening at Alimatha Jetty,. where sharks are often attracted by fish scraps discarded by the island resort, Felidhu Atoll, Republic of Maldives, January...