Scalloped hammerhead shark (Sphyrna lewini) school near the surface. These mostly young females are probably seeking refuge during the daytime. Scalloped hammerheads feed at night. Costa Rica.
A sand tiger shark (Carcharias taurus) inside a wreck off North Carolina. None really knows why these sharks aggregate on wrecks. Food supply, reproduction, water temperature and shelter may all be involved.
Cortez round stingray (Urolophus maculatus) hunting at night.
Head on shot of great hammerhead shark (Sphyrna mokarran) in the Bahamas.
Slow shutter of a sand tiger inside the Aeolis - a wreck that rests about 35 miles off Morehead City in about 100 feet of water.
Ventral view of scalloped hammerhead shark (Sphyrna lewini) at Cocos Island. Costa Rica.
Sunrays above blue shark (Prionace glauca) on the surface. Rhode Island.
Two whale sharks (Rhincodon typus) feeding on tuna eggs at the surface. Mexico.
A sand tiger shark (Carcharias taurus) surrounded by tomtates (Haemulon aurolineatum) and round scad (Decapterus punctatus) on a wreck in North Carolina.
A blue shark (Prionace glauca) in waters off New England.
Lemon shark (Negaprion brevirostris) eye. Bahamas.
The rare sight of a pelagic oceanic whitetip shark (Carcharhinus longimanus) over shallow reef. Bahamas.
Blacktip shark (Carcharhinus limbatus) in a halalu bait ball
A lemon shark (Negaprion brevirostris) swims over sand in the turquoise waters of the Bahamas.
Upclose encounter of sand tiger shark (Carcharias taurus) surrounded by round scad (Decapterus punctatus). North Carolina.
Great hammerhead shark (Sphyrna mokarran) in the Bahamas.
Caribbean reef shark (Carcharhinus perezi) swims up from the reef in the Bahamas.
Caribbean reef shark (Carcharhinus perezi) at dusk under sunrays. Bahamas.
Lemon sharks (Negaprion brevirostris) on a turbid, green water morning. Bahamas.
A sand tiger shark (Carcharias taurus) surrounded by round scad (Decapterus punctatus) above a wreck covered in soft coral. North Carolina is a dream dive destination.
A white shark (Carcharodon carcharias) chases bait among mackeral scad. Guadeloupe Island.
A shortfin mako (Isurus oxyrinchus) in waters off New England.
Gray reef sharks (Carcharhinus amblyrhynchos) fighting to feed on a camouflage grouper at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.French Polynesia.
An oceanic whitetip shark (Carcharhinus longimanus) breaks the surface. Bahamas.
Great white shark (Carcharodon carcharias). Guadeloupe Island.
Massive congregation of hunting gray reef sharks (Carcharhinus amblyrhynchos) at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.
Cortez electric ray (Narcine entemedor) can deliver a painful electric shock like other numbfishes. Reproduction is ovoviviparous and occurs August-September. Females give birth to 4-15 young.
Rainbow runners (Elagatis bipinnulata) accompany a whitetip reef shark (Triaenodon obesus) at Cocos Island. Costa Rica.
Gray reef sharks (Carcharhinus amblyrhynchos) congegrate in Fakarava South Pass (Tetamanu Pass), French Polynesia. During the day the sharks swim slowly against the tidal current in the channel. They hunt at night when the reef fish are resting and are easier to catch.
Sharptail lemon shark (Negaprion auctidens) hunting on a reef during a grouper spawning aggregation (Epinephelus polyphekadion) at night in Palau.
A lemon shark (Negaprion brevirostris) swims over an orange sponge. Bahamas.
Great hammerhead shark (Sphyrna mokarran) and nurse sharks (Ginglymostoma cirratum) in the Bahamas.
Motion blue of nurse shark (Ginglymostoma cirratum) over sand in the Bahamas.
Great white shark (Carcharodon carcharias). Guadeloupe Island.
An oceanic whitetip shark (Carcharhinus longimanus) on the surface from below. Bahamas.
A shortfin mako (Isurus oxyrinchus) in waters off New England
A sand tiger shark (Carcharias taurus) surrounded by tomtates (Haemulon aurolineatum) and round scad (Decapterus punctatus) above gorgonians. North Carolina.
Blacktip shark (Carcharhinus limbatus) hunts inside school of halalu (Selar crumenophthalmus) off Waikiki.
Whitetip reef sharks (Triaenodon obesus) hunt small reef fish hiding in the coral at nght. Cocos Island.
A blue shark (Prionace glauca) at night. Hawaii.
Reef shark (Carcharhinus perezi) silhouette. Bahamas.
A lemon shark (Negaprion brevirostris) circles towards the camera. Bahamas.
Great hammerhead shark (Sphyrna mokarran) in the Bahamas.
A divers looks on as a sand tiger shark (Carcharias taurus) surrounded by round scad (Decapterus punctatus) baitfish swims by. North Carolina.
Grey reef sharks (Carcharhinus amblyrhynchos) on a deep reef in Palau.
Juvenile whale shark (Rhincodon typus). Bahía de los Ángeles.
Motion blur of great hammerhead shark (Sphyrna mokarran) over sand in the Bahamas.
Bat ray (Myliobatis californicus) on a brittle star reef off Santa Barbara Island, California. Bat rays are ovoviviparous. They mate annually, in the spring or summer, and have a gestation period of nine to twelve months. Litter sizes range from two to ten.
Lemon sharks (Negaprion brevirostris) on the surface in turquoise waters of the Bahamas.
Tiger shark (Galeocerdo cuvier) cruises over a reef in the Bahamas.
Tahitian stingrays (Himantura fai), sharks and jacks on a sandbar off Moorea, French Polynesia.
Gray reef sharks (Carcharhinus amblyrhynchos) fight to feed on a camouflage grouper at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.
Two great hammerhead sharks (Sphyrna mokarran) in the Bahamas with nurse sharks in the background.
A shortfin mako (Isurus oxyrinchus) in waters off New England
Great hammerhead shark (Sphyrna mokarran) in the Bahamas.
Caribbean reef shark (Carcharhinus perezi) above red sponge on a reef in the Bahamas.
An oceanic whitetip shark (Carcharhinus longimanus) circling towards the surface. Bahamas.
Blacktip shark (Carcharhinus limbatus) breaks through a school of halalu (Selar crumenophthalmus).
Whale shark (Rhincodon typus) feeding on the surface in Mexico.
Lemon shark (Negaprion brevirostris) swims over orange sponge on a Bahamian reef.
Many bull sharks (Carcharhinus leucas). Fiji.
A sand tiger shark (Carcharias taurus) from below. North Carolina
Motion blur of a lemon shark (Negaprion brevirostris) from below at dusk. Bahamas.
Angelsharks (Squatina squatina) bury themselves in sand or mud lying in wait for prey, which includes fish, crustaceans and various types of mollusks.
Gray reef sharks (Carcharhinus amblyrhynchos) hunt at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.French Polynesia.
A tiger shark on the surface off Oahu, Hawaii.
Gray reef sharks (Carcharhinus amblyrhynchos) feeding on a grouper at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.
A lemon shark (Negaprion brevirostris) near the surface at dusk. Bahamas.
Snappers, fusiliers, and a blacktip reef shark cluster around bait on a reef off Tahiti, French Polynesia.
Tiger shark (Galeocerdo cuvier) off Tahiti, French Polynesia.
Gray reef sharks (Carcharhinus amblyrhynchos) feed on a grouper at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.
Upclose encounter with two sand tiger sharks (Carcharias taurus). North Carolina.
A Tahitian stingray (Himantura fai) on a sandbar with Moorea's mountains in the background. French Polynesia.
A diver swims with a juvenile whale shark (Rhincodon typus) off Bali, Indonesia.
Bull shark (Carcharhinus leucas) extends jaw. Fiji.
Blacktip shark (Carcharhinus limbatus) inside a school of halalu at dusk.
Scalloped hammerhead sharks (Sphyrna lewini) come to cleaning stations during the day to have parasites and loose tissue removed by barberfish (Johnrandallia nigrirostris) and other cleaner fishes. Cocos Island.
Blue shark (Prionace glauca) at twilight. Rhode Island.
A manta ray (Manta birostris) cruises in clear, blue water off Soccoro Island.
Blue shark (Prionace glauca) smile. Rhode Island.
White shark (Carcharodon carcharias). Guadeloupe Island.
Two blacktip sharks (Carcharhinus limbatus) hunt inside school of halalu (Selar crumenophthalmus).
Horn sharks (Heterodontus francisci) lay up to 24 spiral shaped eggs at a time. The eggs attached to crevices and hatch in 6–10 months. The young are able to feed on yolk reserves for up to a month after hatching.
Blacktip sharks (Carcharhinus limbatus) hunting at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.
A blue shark (Prionace glauca) in waters off New England.
Great white shark (Carcharodon carcharias). Guadeloupe Island.
Cortez electric ray (Narcine entemedor) hunting at dusk.
Blacktip shark (Carcharhinus limbatus) hunting inside school of halalu (Selar crumenophthalmus) off Waikiki.
Great white shark (Carcharodon carcharias). Guadeloupe Island.
Gray reef sharks (Carcharhinus amblyrhynchos) fight to feed on a camouflage grouper at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.
Bluespotted ribbontail ray (Taeniura lymma). Indoensia.
Blue shark (Prionace glauca) with fishing hook on the side of its mouth at twilight. Rhode Island. Rhode Island.
Whitetip reef sharks (Triaenodon obesus) hunt small reef fish hiding in the coral at nght. Cocos Island. Costa Rica.
A blue shark (Prionace glauca) in waters off New England.
A tiger shark off Oahu.
Scalloped hammerhead sharks (Sphyrna lewini) come to cleaning stations during the day to have parasites and loose tissue removed by barberfish (Johnrandallia nigrirostris) and other cleaner fishes. Cocos Island.
A sand tiger shark (Carcharias taurus) surrounded by tomtates (Haemulon aurolineatum) and round scad (Decapterus punctatus) inside a wreck off North Carolina.
A blue shark (Prionace glauca) breaks the surface off New England.
A Pacific manta ray (Manta birostris) blocks the sun off Socorro island.
The wrecks in North Carolina are loaded with sand tiger sharks year round. Here multiple sand tigers gather around the Spar - a wreck that rests 35 miles off Morehead City in 100 feet of water.
Two grey reef sharks (C. amblyrhynchos) on the surface at twilight. Bahamas.
Lemon shark (Negaprion brevirostris) swims over purple sponge in the Bahamas.
Blacktip reef sharks (Carcharhinus melanopterus) reflect off the surface on a shallow reef in Fakarava, French Polynesia.
Dusky shark (Carcharhinus obscurus) at night. Bahamas.
An oceanic whitetip shark (Carcharhinus longimanus) up close. Bahamas.
Gray reef sharks (Carcharhinus amblyrhynchos) feed on a grouper at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.
Two blue sharks (Prionace glauca) at twilight off Rhode Island. Rhode Island.
Silky shark (Carcharhinus falciformis) with fish hook and leader under sunrays. Bahamas.
Great white shark (Carcharodon carcharias). Guadeloupe Island.
Tiger shark (Galeocerdo cuvier) off Tahiti, French Polynesia.
This sight is becoming all too common: A grey reef shark (Carcharhinus amblyrhynchos) with a hook and long leader dangling from its mouth. Bahamas.
Whale shark (Rhincodon typus) with boat in the background. Mexico.
Bullseye electric ray (Diplobatus ommata). Solitary. Nocturnal. Can deliver shock using electric organs to defend itself.
A sand tiger shark (Carcharias taurus) surrounded by tomtates (Haemulon aurolineatum) and round scad (Decapterus punctatus) inside a wreck off North Carolina.
Great hammerhead shark (Sphyrna mokarran) in the Bahamas.
A tiger shark (Galeocerdo cuvier) at night. Bahamas.
A diver swims with a juvenile whale shark (Rhincodon typus) off Bali, Indonesia.
Split of lemon shark (Negaprion brevirostris) in turquoise waters of the Bahamas.
A sand tiger shark (Carcharias taurus) in a wreck off North Carolina. Sand tiger embryos feed on eggs and other developing embryos while still inside the mother's uterus, which makes the pups stronger and preps them for a predatory lifestyle. The downside of this is that sand tigers have one of the slowest birth rates of any shark species.
Caribbean reef shark (Carcharhinus perezi). Bahamas.
Indonesian speckled Epaulette Shark (Hemiscyllium freycineti). This species belongs to the bamboo shark family. It is nocturnal, hiding in reef crevices during the day. Reproduction is oviparous. It has the ability to survive low oxygen conditions by switching off non-essential brain functions - apparently an adaptation for hunting in tide-pools. Indonesia.
Lemon sharks are viviparous, females giving birth to between 4 and 17 young every other year in warm and shallow lagoons. The young have to fend for themselves and remain in shallow water near mangroves until they grow larger. With increasing size, the sharks venture further away from their birth place. At maturity at a size of 1.5 to 2 m and an age of 12 to 15 years, they leave shallow water and move into deeper waters offshore. However, little is known of this life stage. Maximum recorded length and weight is 340 cm and 183 kg. Bahamas.
A whitetip reef shark (Triaenodon obesus) circles out of a cave under stormy seas. Socorro.
A Carribbean reef shark (Carcharhinus perezi ) at dusk in the Bahamas. At just over 2 feet, junior here still has several years to grow before reaching adulthood (5-7 feet).
Marbled ray (taeniura meyeni) and fish reef scene at Cocos Island. Costa Rica.
Tiger shark (Galeocerdo cuvier) off Tahiti, French Polynesia.
Head on shot of nurse shark (Ginglymostoma cirratum) at night in the Bahamas.
Three sand tiger sharks (Carcharias taurus) surrounded by round scad (Decapterus punctatus) on a wreck off North Carolina. The scad cluster around the shark for protection from predators, such as jacks and tunas.
A lone manta ray (Manta birostris) in the distaince cruises by a cliff at dusk. Socorro.
A large tiger shark (Galeocerdo cuvier) on a stormy day. Bahamas.
Gray reef sharks (Carcharhinus amblyrhynchos) hunt in the shallows at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.
Caribbean reef shark (Carcharhinus perezi) swims over colorful sponges in the Bahamas.
Diver feeds bull shark (Carcharhinus leucas) on a shark dive in Fiji.
A sand tiger shark (Carcharias taurus) surrounded by round scad (Decapterus punctatus) baitfish. This species has one of the slowest birth rates of all sharks and is susceptible to even minimal population pressure. It's listed as vulnerable to endangered in various parts of the world. North Carolina.
A lemon shark (Negaprion brevirostris) at dusk. Bahamas.
Upclose encounter of two sand tiger sharks (Carcharias taurus). Despite their vicious appearance, sand tigers are actually rather docile. North Carolina.
Head on shot of a lemon shark (Negaprion brevirostris) at dusk. Bahamas.
Silhouette of a blacktip shark (Carcharhinus limbatus) in school of halalu (Selar crumenophthalmus).
A whale shark (Rhincodon typus) on a deep reef in the Galapagos Islands.
Sand tiger shark (Eugomphodus taurus) surrounded by bait fish in North Carolina.
Great hammerhead shark (Sphyrna mokarran) hunting for leftover bait next to four nurse sharks (Ginglymostoma cirratum) in the Bahamas.
Scalloped hammerhead sharks (Sphyrna lewini) come to cleaning stations during the day to have parasites and loose tissue removed by barberfish (Johnrandallia nigrirostris) and other cleaner fishes. Cocos Island. Costa Rica.
A young tiger shark (Galeocerdo cuvier) breaches the surface. Bahamas.
Gray reef sharks (Carcharhinus amblyrhynchos) fight to feed on a camouflage grouper at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.
Head on shot of a blue shark (Prionace glauca) on the surface. Rhode Island.
Great white shark (Carcharodon carcharias). Guadeloupe Island.
Tiger shark (Galeocerdo cuvier) off Tahiti, French Polynesia.
Bull shark (Carcharhinus leucas) among reef fish. Fiji.
Silhouette of a blacktip shark (Carcharhinus limbatus) in school of halalu (Selar crumenophthalmus).
A diver swims with a juvenile whale shark (Rhincodon typus) off Bali, Indonesia.
Great hammerhead shark (Sphyrna mokarran) in the Bahamas.
Great white shark (Carcharodon carcharias). Guadeloupe Island.
Whale shark (Rhincodon typus) surfaces with boat and spectators in the background. Mexico.
Great hammerhead shark (Sphyrna mokarran) on sand in the Bahamas.
A manta ray (Manta birostris) at night. Hawaii.
Headshot of a silky shark (Carcharhinus falciformis) at the surface in the Bahamas.
Spotted eagle rays (Aetobatus narinari) in Fakarava South Pass (Tetamanu Pass), French Polynesia.
An oceanic whitetip shark (Carcharhinus longimanus) in blue open water. Bahamas.
Face to face with a sand tiger shark (Eugomphodus taurus) under the Spar - a wreck in North Carolina.
Nurse sharks (Ginglymostoma cirratum) feeding in a marina in the Bahamas.
Caribbean reef shark (Carcharhinus perezi) at dusk. Bahamas.
A curious tiger shark (Galeocerdo cuvier) in the Bahamas about to make contact.
Blacktip reef shark (Carcharhinus melanopterus) hunting on the sand at sunset. French Polynesia.
Upclose encounter of a sand tiger shark (Carcharias taurus) surrounded by round scad (Decapterus punctatus). North Carolina.
Up close slow shutter blur of a sand tiger shark (Eugomphodus taurus) in North Carolina.
Gray reef sharks (Carcharhinus amblyrhynchos) feed on a grouper at night in Fakarava South Pass (Tetamanu Pass), French Polynesia.
Split of lemon shark (Negaprion brevirostris) in turquoise waters of the Bahamas.
A diver films a sand tiger shark (Carcharias taurus) on a deep wreck off North Carolina. Sand tigers are very tolerant of divers.
A lemon shark makes eye contact. Bahamas.
Diver holds off a huge and pregant tiger shark (Galeocerdo cuvier) with his camera. Bahamas.
A blue shark (Prionace glauca) in waters off New England.
A young tiger shark (Galeocerdo cuvier) breaches the surface with a fish in its mouth. Bahamas.
Silhouette of scalloped hammerhead shark (Sphyrna lewini) at Cocos Island. Costa Rica.
Gray reef sharks (Carcharhinus amblyrhynchos) hunt at night on a reef in Fakarava, French Polynesia.
Two Caribbean reef sharks (Carcharhinus perezi) in the Bahamas.
Whitetip reef shark (Triaenodon obesus) circles a pinnacle at Cocosl Island.
Great hammerhead shark (Sphyrna mokarran) in the Bahamas.
Snorkeler photographs whale shark botella - the vertical feeding posture. Mexico.
A Caribbean reef shark (Carcharhinus perezi) swims over a colorful reef in the Bahamas.
Great hammerhead shark (Sphyrna mokarran) at dusk in the Bahamas.
A sand tiger shark (Carcharias taurus) surrounded by round scad (Decapterus punctatus) brushes up against my camera port. The scad cluster around the shark for protection from predators, such as jacks and tunas. North Carolina.
Juvenile whale shark (Rhincodon typus). Bahía de los Ángeles.
Tiger shark (Galeocerdo cuvier) off Tahiti, French Polynesia.
Blacktip reef sharks on a sandbar with Moorea's mountains in the background. French Polynesia.
Divers photograph gray reef sharks (Carcharhinus amblyrhynchos) hunting at night on a reef in Fakarava, French Polynesia.
Juvenile spotted eagle ray (Aetobatus narinari) in Palau. Juvenile eagle rays are distinguished from adults by their long tail, which is almost twice as long as the body. Palau.
Five mantas feeding on plankton at the manta ray night dive in Kona, Hawaii.
Motion blur of great hammerhead shark (Sphyrna mokarran) over sand in the Bahamas.
Great hammerhead shark (Sphyrna mokarran) with rusted fish hook in its mouth at dusk in the Bahamas.
Great hammerhead shark (Sphyrna mokarran) in the Bahamas.
A tiger shark (Galeocerdo cuvier) over white sand bottom in the Bahamas.
Close up of a blue-spotted ray (Taeniura lymma) resting under a ledge. Indonesia.
A lemon shark (Negaprion brevirostris) on white sand bottom next to a starfish. Bahamas.
Gray reef sharks (Carcharhinus amblyrhynchos) hunt at night on a reef in Fakarava, French Polynesia.
A tiger shark (Galeocerdo cuvier) inspects a sperm whale carcass off Oahu, Hawaii. The particles in the water is decaying organic matter from the dead whale.
Blacktip reef shark (Carcharhinus melanopterus) hunt on the sand at sunset. French Polynesia.
A young tiger shark (Galeocerdo cuvier) and lone bar jack on white sand in the Bahamas.
Nurse sharks (Ginglymostoma cirratum) squirts water while swimming onto dock for food. Bahamas.
Whale shark (Rhincodon typus) silhouette. Mexico.
Magic hour! Motion blur of blue shark (Prionace glauca) at twilight off New England. Rhode Island.
Manta ray (Manta birostris) at a cleaning station in Palau.
