Jeff Rotman / Common thresher shark (Alopias vulpinus) caught in gill net, observed by diver at night, Huatampo, Mexico, Gulf of California, Pacific Ocean. Model released. May 2008.

Nuno Sa / Blue Shark (Prionace glauca) with diver in background. Santa Maria, Azores, September.

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

Claudio Contreras / Great white shark (Carcharodon carcharias) passing divers cage, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, Pacific ocean, September

Jeff Rotman / Caribbean Reef shark (Carcharhinus perezi) in hypnotic trance being lifted by shark handler, Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Shark handler wearing chain mail suit feeding Caribbean Reef shark (Carcharhinus perezi) Bahamas, Caribbean Sea. Model release Model released.

Jeff Rotman / Close up of diving scientist reviving a Bigeye / Iago shark (Iago omanensis) Red Sea, Model released Model released.

Jeff Rotman / Shark handler wearing chain mail suit holding Caribbean reef shark (Carcharhinus perezi) in hypnotic trance. Caribbean sea Model released.

Jeff Rotman / Shark handlers feed Caribbean Reef shark (Carcharhinus perezi) Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Sequence 2/3 Diver with anti-shark POD examininf Tiger shark (Galeocerdo cuvier) caught in anti-shark net off Durban Beach, Natal, South Africa. Model released.

Sue Flood / Two divers in shark cage, waiting for Great white shark, off shark-diving boat, Guadalupe, Mexico, September 2002

Michael Pitts / Caribbean reef sharks (Carcharhinus perezi) at night on wreck of the "'Ray of Hope'', Bahamas. July 2008.

Flip Nicklin / Whale Shark (Rhincodon typus) surrounded by several scuba divers, threatened, Cocos Island, Costa Rica

Jeff Rotman / Handlers feeding Caribbean reef shark (Carcharhinus perezi). Bahamas Model released.

Juergen Freund / Whale shark, diver and air bubbles {Rhincodon typus} Christmas Island, Australia

Jeff Rotman / Diver observing dead sharks on seafloor, finned alive and thrown overboard to drown, caught on longline, Cocos Island, Costa Rica, Pacific Ocean Model released.

Juergen Freund / Whale shark {Rhincodon typus} + diver Sulu-sulawesi seas, Indo-pacific

Jeff Rotman / Father and sons observe Caribbean reef shark. {Carcharhinus perezi} Bahamas. Model released. Model released.

Jeff Rotman / Looking up at Whale shark and divers from below {Rhincodon typus} Ningaloo Reef Western Australia

Jeff Rotman / Divers watch Caribbean reef shark {Carcharhinus perezi} Bahamas, Caribbean. Model released.

Jeff Rotman / Shark handler wearing chain mail suit feeds Caribbean reef shark(Carcharhinus perezi) Bahamas Model released.

Jeff Rotman / Great white shark with divers filming from protective cage. South Australia. Model released.

Alex Mustard / A snorkeller films himself swimming with a filter feeding Whale shark (Rhincodon typus), Isla Mujeres, Quintana Roo, Yucatan Peninsula, Mexico, Caribbean Sea.

Mark Carwardine / Cage-diving for Great white shark {Carcharodon carcharias} Guadalupe Island, Mexico (North Pacific)

Mark Carwardine / Watching a Great white shark (Carcharodon carcharias) from inside a diving cage, Guadalupe Island, Mexico (North Pacific)

Mark Carwardine / Tuna used for bait in great white shark diving cage, Guadalupe Island, Mexico (North Pacific)

Mark Carwardine / Firing chum slick into the water as bait for Great white shark cage-diving, Guadalupe Island, Mexico (North Pacific)

Mark Carwardine / Cage-diving with Great white shark (Carcharodon carcharias) Guadalupe Island, Mexico (North Pacific) Shark taking bait in front of cage

Mark Carwardine / Lowering diving cage into the sea for viewing Great white shark, Guadalupe Island, Mexico (North Pacific)

Mark Carwardine / Lowering diving cage into the sea for viewing Great white shark, Guadalupe Island, Mexico (North Pacific)

Jeff Rotman / Common Thresher Shark (Alopias vulpinus) silhouette of one caught in gill net with diver approaching, Huatabampo, Mexico, Sea of Cortez, Pacific Ocean. Model released. May 2008. Model released.

Michele Westmorland / Scuba diver with Nurse shark (Ginglymostoma cirratum) in healthy marine life area 'Grand Canyon'. Grenada, West-Indies, Caribbean, May 2009. Model relased.

Nuno Sa / Blue Shark (Prionace glauca) near sea surface and diver with photographic equipment. Santa Maria, Azores, September.

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by divers. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Santa Maria Island, Azore...

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...

Nuno Sa / Blue Shark (Prionace glauca) and diver with underwater photographic equipment. Santa Maria, Azores, September.

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...

Jeff Rotman / Diver examining sharks finned alive and thrown overboard. Costa Rica, Pacific Ocean. Model released.

Jeff Rotman / Diver observes Blacktip Shark (Carcharhinus limbatus) hooked on long line. Cocos Island, Costa Rica, Pacific Ocean. Model released.

Jeff Rotman / Diver holding a Scalloped Hammerhead (Sphyrna lewini), finned alive, thrown overboard to drown. Cocos Island, Costa Rica, Pacific Ocean. Model released.

Juergen Freund / WWF Philippines Donsol Research Coordinator taking a photo of the left pectoral fin of a passing Whale shark (Rhincodon typus) for photo identification, to be submitted to www.whaleshark.org. Donsol,...

Juergen Freund / Research scientist tagging Whale shark (Rhincodon typus) as part of study, Donsol, Philippines, April 2010

Alex Mustard / A Basking shark (Ceterhinus maximus) feeding, while watched by a snorkeller (photographer Doug Perrine) Cornwall, UK. North East Atlantic Ocean. June

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 / Diver photographing an Angelshark (Squatina squatina) as it rests on the seabed. Gran Canaria, Canary Islands, Spain.

Alex Mustard / Dusky shark (Carcharhinus obscurus) investigating a scuba diver. Cat Island, Bahamas. July

Pete Oxford / James Ketchum diving with spear gun loaded with PAT (Satellite Tag) for tagging a Whale Shark, to study migration patterns. Wolf Island Galapagos islands, Ecuador, South America July 2008, Model relea...

Jeff Rotman / Shark handler feeds several Caribbean Reef sharks (Carcharhinus perezi) Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Shark handler wearing chain mail suit holding Caribbean reef shark (Carcharhinus perezi) in hypnotic trance. Caribbean sea Model released.

Jeff Rotman / Shark handler wearing chain mail suit feeding a Caribbean reef shark (Carcharhinus perezi) Caribbean sea Model released.

Jeff Rotman / Marine Biologist observing juvenile Hammerhead shark (Sphyrna lewini) in tonic immobility / playing dead. Kane'ohe Bay, Hawaii.

Jeff Rotman / Scientsist revives Tiger shark (Galeocerdo cuvier), Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Scientist revives Tiger shark (Galeocerdo cuvier). Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Divers remove long-line fishing hook from Tiger shark (Galeocerdo cuvier) Bahamas, Caribbean Sea Model released.

Jeff Rotman / Scientist handles Silky shark (Carcharhinus falciformis) causing it to play dead i.e. perform 'tonic imobility' Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Scientsist revives and saves Tiger shark (Galeocerdo cuvier) from fishing related injury, by forcing water across its gills, Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Great White shark (Carcharodon carcharias) swimming past protective cage, Dangerous Reef, Great Australian Bight, South Australia

Jeff Rotman / Diver filming Great White shark (Carcharodon carcharias) from protective cage, Dangerous Reef, Great Australian Bight, South Australia Model released.

Jeff Rotman / Diver filming Great White shark (Carcharodon carcharias) from protective cage, Dangerous Reef, Great Australian Bight, South Australia Model released.

Jeff Rotman / Diver uses shark billy to fend off Caribbean Reef Shark (Carcharhinus perezi) Bahamas, Caribbean Sea Model released.

Jeff Rotman / Shark expert Neal Watson fighting off a Lemon shark (Negaprion brevirostris) The Bahamas, Caribbean. (model released) Model released.

Jeff Rotman / Diver photographing Great White shark (Carcharodon carcharias) attacking tuna bait, Pacific Ocean, Guadalupe Island, Mexico Model released.

Doug Perrine / Copper sharks / Bronze whaler (Carcharhinus brachyurus) feeding and Cape gannets {Sula capensis}diving on a baitball of Sardines / Pilchards (Sardinops sagax) during the annual Sardine Run off the eas...

Doug Perrine / Whale shark {Rhincodon typus} rises out of spawning aggregation of Mutton snappers, past divers, Gladden Spit and Silk Cayes Marine Reserve, Belize, Central America, Caribbean Sea

Pete Oxford / Researcher James Ketchum with satellite tag for tagging shark, Wolf Island, Galapagos Islands, Ecuador

Pete Oxford / Researcher James Ketchum with satellite tag for tagging shark, Wolf Island, Galapagos Islands, Ecuador

Jeff Rotman / Great White Shark (Carcharodon carcharias) attacking protective shark diving cage, Dangerous Reef, South Australia

Jeff Rotman / Diver observes Blacktip Reef Shark (Carcharhinus limbatus) eaten by Giant Bull Shark, Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Diver filming Great White Shark (Carcharodon carcharias) from protective shark diving cage, Dangerous Reef, South Australia Model released.

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

Jeff Rotman / Divers remove long-line fishing hook from Tiger Shark (Galeocerdo cuvier), Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Scientsist revives and saves Tiger Shark (Galeocerdo cuvier) by forcing water across its gills, Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Shark handler feeds Caribbean Reef Shark (Carcharhinus perezi). Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Diver with anti-shark POD examines Dusky Shark (Carcharhinus obscurus) caught in anti-shark net. Durban Beach, Natal Sharks Board, Umhlanga, South Africa Model released.

Jeff Rotman / Close-up of Marine Biologist observing Juvenile Scalloped hammerhead shark (Sphyrna lewini) in tonic immobility. Kane'ohe Bay, Hawaii,USA, Pacific

Jeff Rotman / Great blue shark (Prionace glauca) approaching dive cage with two divers and three shark in background. California, Pacific Ocean. Model released.

Juergen Freund / John Rumney catching and tagging white tip reef shark (Triaenodon obesus) - they rope lasso the tail of the white tip and bring the shark up to the boat to measure and ID the shark and attach a small...

Juergen Freund / John Rumney catching and tagging white tip reef shark (Triaenodon obesus) - they rope lasso the tail of the white tip and bring the shark up to the boat to measure and ID the shark and attach a small...

Juergen Freund / Grey Reef shark (Carcharhinus amblyrhynchos) attacking bait, North Horn, Queensland, Australia.

Juergen Freund / John Rumney catching and tagging white tip reef shark (Triaenodon obesus) - they rope lasso the tail of the white tip and bring the shark up to the boat to measure and ID the shark and attach a small...

Juergen Freund / Great reef shark (Carcharhinus amblyrhnchos) and other fish with a "shark attack" cage, North Horn, Queensland, Australia.

Doug Perrine / Stefanie Brendl films Tiger shark (Galeocerdo cuvier) underwater, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean (MR 389)

Doug Perrine / Photographer films Tiger shark (Galeocerdo cuvier) underwater, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean (MR 390)

Doug Perrine / Stefanie Brendl films Tiger shark (Galeocerdo cuvier) underwater, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean (MR 389)

Doug Perrine / Diver swimming with Tiger shark (Galeocerdo cuvier) outside shark cage, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean (MR 389)

Doug Allan / Doug Allan, cameraman, preparing to dive with chain mail suit for shark protection, for National Geographic, 1995

Doug Perrine / Greenland sleeper shark (Somniosus microcephalus) and underwater photographer, St. Lawrence River estuary, Canada NB: this shark was wild and unrestrained Model released 373

Doug Perrine / Greenland sleeper shark (Somniosus microcephalus) and underwater photographer, St. Lawrence River estuary, Canada NB: this shark was wild and unrestrained Model released 373

Doug Perrine / Greenland sleeper shark (Somniosus microcephalus) and underwater photographer, St. Lawrence River estuary, Canada NB: this shark was wild and unrestrained Model released 374

Doug Perrine / Greenland sleeper shark (Somniosus microcephalus) and underwater photographer, St. Lawrence River estuary, Canada NB: this shark was wild and unrestrained Model released 373

Juergen Freund / Richard Fitzpatrick turns drowsy Tiger shark {Galeocerdo cuvieri} to rouse it back into movement after attaching satellite transmitter, Great Barrier Reef & Coral Sea, Australia

Juergen Freund / Richard Fitzpatrick turns drowsy Tiger shark {Galeocerdo cuvieri} to rouse it back into movement after attaching satellite transmitter, Great Barrier Reef & Coral Sea, Australia

Juergen Freund / Richard Fitzpatrick swims with drowsy Tiger shark {Galeocerdo cuvieri} to rouse it back into movement after attaching satellite transmitter, Great Barrier Reef & Coral Sea, Australia

Juergen Freund / Divers attach temperature + depth recorder tag on Whitetip reef sharks tail {Triaenodon obesus} Osprey Reef, Coral Sea, Australia

Doug Perrine / Divers cut free Hammerhead shark {Sphyrna lewini} caught in illegal shark net Galapagos