Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) swimming in coastal pool, Tortuga Bay, Santa Cruz Island, Galapagos Islands, Ecuador
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Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) in shallow water along coast, Turtle Cove, Santa Cruz Island, Galapagos Islands, Ecuador
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Paul Bertner / Ocean surface, Santa Cruz Island, Galapagos Islands, Ecuador
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Doug Perrine / Aerial view of channel through southern Belize barrier reef, with house on small caye. Near Placencia, Belize Barrier Reef Reserve System UNESCO Natural World Heritage Site, Central America.
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SCOTLAND: The Big Picture / Tidal channel flowing into Talisker Bay, Isle of Skye, Inner Hebrides, Scotland, UK, October 2012.
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Sue Daly / Group of Jewel sea anemones (Corynactis viridis), with tentacles moving in the current, Sark, British Channel Islands, UK, August.
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Sue Daly / Cuttlefish (Sepia officinalis) eating a Seabream (Sparidae), filmed at night, Sark, British Channel Islands, UK, October.
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Sue Daly / Portrait of a Sole (Solea solea) swimming over the seabed, filmed at night, Sark, British Channel Islands, UK, October
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Sue Daly / Portrait of a Sole (Solea solea) swimming over the seabed, filmed at night, Sark, British Channel Islands, UK, October.
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Sue Daly / Portrait of a Sole (Solea solea) camouflaged against the seabed, filmed at night, Sark, British Channel Islands, UK, October.
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Sue Daly / Netted dogwhelk (Nassarius reticulatus) moving across the seabed, Sark, British Channel Islands, UK, July.
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Sue Daly / Close up of a Beadlet sea anemone (Actinia equina) showing acrorhagi stinging cells, red colour form, Sark, British Channel Islands, UK, July.
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Sue Daly / Beadlet sea anemone (Actinia equina), red colour form, Sark, British Channel Islands, UK, July.
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Sue Daly / Beadlet sea anemone (Actinia equina), orange colour form, Sark, British Channel Islands, UK, July.
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Sue Daly / Colony of Beadlet sea anemones (Actinia equina), showing red, orange and green colour forms, Sark, British Channel Islands, UK, July.
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Sue Daly / Beadlet sea anemone (Actinia equina), in both red and green colour forms, Sark, British Channel Islands, UK, July.
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Sue Daly / Tracking shot over a patch of Eel grass (Zostera marina), Sark, British Channel Islands, UK, June.
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Sue Daly / Tub gurnard (Trigla lucerna) resting on the seabed, Sark, British Channel Islands, UK, August.
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Sue Daly / Tub gurnard (Trigla lucerna) swimming and resting on the seabed, showing use of finger like pectoral fins, Sark, British Channel Islands, UK, August.
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Sue Daly / Long-spined sea scorpion (Taurulus bubalis) resting on pebbles, Sark, British Channel Islands, UK, August.
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Sue Daly / Bass Dicentrachus labrax, Wide angle, shoal swims by, 2013 , Sark, British Channel Islands, UK,
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Sue Daly / Shoal of Bass (Dicentrachus labrax), Sark, British Channel Islands, UK, August.
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Sue Daly / Male Cuckoo wrasse (Labrus mixtus) swimming past a reef wall covered in Jewel anemones (Corynactis viridis), Sark, British Channel Islands, UK, July.
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Sue Daly / Close-up of a Common sea urchin (Echinus esculentus) showing spines and tube feet, Sark, British Channel Islands, UK, 2013.
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Sue Daly / Common sea urchin (Echinus esculentus) attached to a wall, with female Cuckoo wrasse (Labrus mixtus) swimming in the background, Sark, British Channel Islands, UK, 2013.
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Sue Daly / Close-up of a colony of Red sea fingers (Alcyonium glomeratum), showing polyps, Sark, British Channel Islands, UK, August.
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Sue Daly / Colony of Red sea fingers (Alcyonium glomeratum), Sark, British Channel Islands, UK, August.
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Sue Daly / Wide angle shot with open and closed colonies of Red sea fingers (Alcyonium glomeratum), Sark, British Channel Islands, UK, August.
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Sue Daly / Snakelocks anemone (Anemonia viridis) moving in the current, Sark, British Channel Islands, UK, June.
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Sue Daly / Group of Jewel anemones (Corynactis viridis), Sark, British Channel Islands, UK,
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Sue Daly / Anemone hermit crab (Pagurus prideaux) attacking another, with Cloak anemones (Adamsia palliata) covering both their shells, Sark, British Channel Islands, UK, October.
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Sue Daly / Anemone hermit crab (Pagurus prideaux) sifting gravel on the seabed for food, with a Cloak anemone (Adamsia palliata) covering its shell, Sark, British Channel Islands, UK, October.
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Sue Daly / Anemone prawn (Periclimenes sagittifer) in a Snakelocks anemone (Anemonia viridis), Sark, British Channel Islands, UK, September.
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Sue Daly / Anemone prawn (Periclimenes sagittifer) in a Snakelocks anemone (Anemonia viridis), Sark, British Channel Islands, UK, September.
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Sue Daly / Anemone prawn (Periclimenes sagittifer) in a Snakelocks anemone (Anemonia viridis), Sark, British Channel Islands, UK, September.
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Sue Daly / Common hermit crab (Pagurus bernhardus), Sark, British Channel Islands, UK, June.
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Sue Daly / Common hermit crab (Pagurus bernhardus) Sark, British Channel Islands, UK, June.
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Sue Daly / Common hermit crab (Pagurus bernhardus), Sark, British Channel Islands, UK, June.
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Sue Daly / Common hermit crab (Pagurus bernhardus) with a Parasitic anemone (Calliactis parasitica) in its shell, Sark, British Channel Islands, UK, June.
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Sue Daly / Sponge spider crab (Inachus) in a Snakelocks anemone (Anemonia viridis), Sark, British Channel Islands, UK, September.
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Sue Daly / Sponge spider crab (Inachus) in a Snakelocks anemone (Anemonia viridis), Sark, British Channel Islands, UK, September.
01474738
Sue Daly / Sponge spider crab (Inachus) in a Snakelocks anemone (Anemonia viridis), Sark, British Channel Islands, UK, September.
01573783
David Pattyn / Beach in late evening light, looking out to Mozambique Channel. Anjajavy Private Reserve, north west Madagascar, August 2016.
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Graham Eaton / Cliffs of Bridport sandstone, variably cemented, Jurrasic Coast, Burton Bradstock, Dorset, England, UK, August 2012.
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Graham Eaton / Rotated normal fault in Cretaceous chalk with erosion, small caves at base. Chalk beds vertical and parallel with the cliff, Durdle Door, Jurassic Coast, Dorset, England, April 2012.
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Alex Mustard / Tiger shark (Galeocerdo cuvier) in open water. Grand Bahama, Northwest Providence Channel, Bahamas. Tropical West Atlantic Ocean.
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Terry Whittaker / Rays of sunshine breaking through dark clouds over sea of English Channel, Kent, UK. July
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Terry Whittaker / Rays of sunshine breaking through dark clouds over sea, English Channel, Kent, UK. July
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Terry Whittaker / Cross-channel ferry. English Channel with French coast in background, Dover, Kent, UK. July
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Alex Mustard / RF - View through giant kelp (Macrocystis pyrifera) forest. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacific Ocean. (This image may be licen...
01560605
Alex Mustard / RF - Young female and young male grey seal (Halichoerus grypus) swimming in shallows. Lundy Island, Devon, England, United Kingdom. British Isles. Bristol Channel. (This image may be licensed either a...
01560601
Alex Mustard / RF - Large adult female grey seal (gray seal: Halichoerus grypus) silhoutted against sun. Lundy Island, Devon, England, United Kingdom. British Isles. Bristol Channel. North East Altantic Ocean.
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Alex Mustard / RF - Young grey seal (Halichoerus grypus) swimming at surface beneath cliffs of Lundy Island, Devon, England, United Kingdom. British Isles. Bristol Channel. North East Altantic Ocean. (This image may...
01560599
Alex Mustard / RF - Split level image of young grey seal (Halichoerus grypus) hanging beneath surface close to shore. Lundy Island, Devon, England, United Kingdom. British Isles. Bristol Channel. North East Altantic...
01558606
Ross Hoddinott / RF - St Michael's Mount and old causeway at sunrise, Marazion, Cornwall, UK. October 2015. (This image may be licensed either as rights managed or royalty free.)
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Alex Mustard / Grey seal (Halichoerus grypus) swimming above at surface, Lundy Island, Devon, UK, Bristol Channel August
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Alex Mustard / Tompot blenny (Parablennius gattorugine) male peers out of its den, in leg of Swanage Pier, Swanage, Dorset, UK, English Channel, August
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Alex Mustard / Blacksmiths (Chromis punctipinnis) school swam through a giant kelp (Macrocystis pyrifera) forest, Santa Barbara Island, Channel Islands. Los Angeles, California, USA, North East Pacific Ocean.
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Alex Mustard / Grey seal (Halichoerus grypus) young seal gapes mouth showing teeth in playful mood, Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Halichoerus grypus) young male swims over a kelp forest (Laminaria hyperborea) Farne Islands, Northumberland, UK, North Sea, August
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Alex Mustard / Grey seal (Haichaoerus grypus) young female swims over granite boulders in the shallows. Lundy Island, Devon, UK. Bristol Channel, August
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Alex Mustard / Grey seal (Haichaoerus grypus) split level view of young male swimming beneath the surface close to shore. Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Haichaoerus grypus) split level view of young male swimming beneath the surface close to shore. Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Haichaoerus grypus) split level view of young male swimming beneath the surface close to shore. Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Haichaoerus grypus) split level of young seal investigating the camera with its nose and whiskers, close to shore. Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Haichaoerus grypus) silhouetted as it swims at the surface with a sunburst, Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Haichaoerus grypus) large female silhouetted as it swims at the surface with a sunburst, Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Haichaoerus grypus) large female adult sleeps in a bed of seaweeds (Fucus serratus) Lundy Island, Devon, England, UK Bristol Channel, August.
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Alex Mustard / Grey seal (Haichaoerus grypus) swimming below surface with sunbeams. Lundy Island, Devon, UK. Bristol Channel, August.
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Alex Mustard / Grey seal (Haichaoerus grypus) young female opens her mouth playfully while she looks up from a bed of shallow seaweeds (Fucus serratus) Lundy Island, Devon, UK. Bristol Channel, August
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Alex Mustard / Grey seal (Haichaoerus grypus) playful young female upside down, Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Halichoerus grypus) male swims in loops over granite boulders in the shallows. Lundy Island, Devon, UK. Bristol Channel. August
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Alex Mustard / Grey seal (Halichoerus grypus) split level view of young swimming at the surface beneath the cliffs of Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Tompot blenny (Parablennius gattorugine) male peering out of its den, in a leg of Swanage Pier. Swanage, Dorset, UK, English Channel. North East Atlantic Ocean, August
01555413
Alex Mustard / Grey seal (Halichoerus grypus) young seal opens its moutfh towards the camera, while swimming over a shallow bed of seaweeds (Fucus serratus) Lundy Island, Devon, UK. Bristol Channel. North East Altan...
01555411
Alex Mustard / Common / harbour seal (Phoca vitulina) swims beneath a kelp forest, Santa Barbara Island, Channel Islands. Los Angeles, California, USA, Pacific Ocean, September
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Alex Mustard / Grey seal (Halichoerus grypus) young seal opens its mouth releasing bubbles as it scratches its back on a granite boulder. Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Halichoerus grypus) large adult female plays with a piece of kelp (Laminaria sp) amongst granite boulders. Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Halichoerus grypus) silhoutted on the surface with a sunburst, Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Halichoerus grypus) young male swimming above Kelp / Oarweed (Laminaria hyperborea) Farne Islands, Northumberland, UK, North Sea, August
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Alex Mustard / A view up through a Giant kelp (Macrocystis pyrifera) forest, Santa Barbara Island, Channel Islands. Los Angeles, California, USA, Pacific Ocean, September
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Alex Mustard / Grey seal (Halichoerus grypus) large adult female looks down from the surface, Lundy Island, Devon, UK, Bristol Channel August
01555385
Alex Mustard / Grey seal (Halichoerus grypus) large female exhales a stream of bubbles as she sleeps on shallow seaweeds (Fucus serratus) Lundy Island, Devon, UK, Bristol Channel, August. Highly commended in the Hab...
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Alex Mustard / Grey seal (Halichoerus grypus) young male plays and gapes, showing his teeth.Lundy Island, Devon, UK, Bristol Channel, August
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Alex Mustard / Grey seal (Halichoerus grypus) young female opens her mouth playfully while she looks up from the seabed. Lundy Island, Devon, UK, Bristol Channel, August
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Mary McDonald / Steller sea lion (Eumetopias jubatus) sunning on channel buoy, Petersburg, Alaska, USA, August.
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Alex Mustard / Four California spiny lobsters (Panulirus interruptus) shelter beneath a boulder in a kelp forest. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East...
01536826
Alex Mustard / School of Blacksmith fish (Chromis punctipinnis) swim through a giant kelp (Macrocystis pyrifera) forest. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. Nort...
01536820
Alex Mustard / Red gorgonians (Lophogorgia chilensis) growing beneath a Giant kelp (Macrocystis pyrifera) forest, with female California sheephead (Semicossyphus pulcher). Santa Barbara Island, Channel Islands. Los...
01536807
Alex Mustard / California sea lions (Zalophus californianus) group playing in the sun in the early morning. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacifi...
01536802
Alex Mustard / California sea lions (Zalophus californianus) babies playing in the safety of shallow water. Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacif...
01536798
Alex Mustard / Harbour seal (Phoca vitulina) investigating the leg of the photographer (Alex Mustard). Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacific Oce...
01536786
Alex Mustard / Air filled bladders of Giant kelp (Macrocystis pyrifera). Santa Barbara Island, Channel Islands. Los Angeles, California, United States of America. North East Pacific Ocean.
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Bernard Castelein / View on Mozambique channel at sunset, near Andavadoaka, Madagascar, October 2015
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Solvin Zankl / Dead man's rope algae (Chorda filum), Purbeck Marine Wildlife Reserve, Kimmeridge Bay, Dorset, UK, July.
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Brent Stephenson / Brash ice and bergy bits (small icebergs) covering the surface of the Lemaire Channel, Antarctic Peninsula, Antarctica, January 2012.