Nuno Sa / Long snouted seahorse (Hippocampus guttulatus) in captive breeding laboratory at University of Algarve, Portugal. June 2010. Overall winner of the Underwater Photographer of the Year competition 2015.
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Pete Oxford / Whale Shark (Rhincodon typus) and Golden Trevally (Gnathanodon speciosus) school, Cenderawasih Bay, West Papua, Indonesia
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Pete Oxford / Whale Shark (Rhincodon typus) filter feeding at floating fishing platform, Cenderawasih Bay, West Papua, Indonesia
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Pete Oxford / Whale Shark (Rhincodon typus), Cenderawasih Bay, West Papua, Indonesia
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Pete Oxford / Whale Shark (Rhincodon typus), Cenderawasih Bay, West Papua, Indonesia
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Tim Fitzharris / Whale Shark (Rhincodon typus) eating with attendant Remoras (Remora remora), Philippines
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Nuno Sa / Whale Shark (Rhincodon typus) passing by baitball, Santa Maria Island, Azores, Portugal, September 2008.
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Norbert Wu / Whale Shark (Rhincodon typus) feeding on plankton off Isla Mujeres, Mexico
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Nuno Sa / Blue Shark (Prionace glauca) near sea surface and divers in background. Santa Maria, Azores, September.
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Nuno Sa / Manta Ray (Manta Birostris) and Devil Ray (Mobula tarapacana) in background, accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.
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Nuno Sa / Blue Shark (Prionace glauca) near sea surface. Santa Maria, Azores, September.
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Nuno Sa / Blue Shark (Prionace glauca) at the sea surface. Santa Maria, Azores, August.
