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Harbor Seal diving underwater (Phoca vitulina) or Common Seal
Anthopleura xanthogrammica, or the giant green anemone, is a species of intertidal sea anemone of the family Actiniidae. Other  names for this anemone include green surf anemone, giant green sea anemone, green anemone, giant tidepool anemone, anemone, and rough anemone.  Salt Point State Park, California.
Red Sea Anemone clinging to the rocks in a rockpool at the UK coastline at low tide.
Zalophus californianus
different fishes in aquarium for design purpose, wallpaper
Lionfish
Large white fish is swimming in a dark cave. The fish is surrounded by rocks and plants. Scene is mysterious and calm. Big fish gracefully swimming in aquarium water
The dugong is a medium-sized marine mammal. It is one of four living species of the order Sirenia, which also includes three species of manatees. It is the only living representative of the once-diverse family Dugongidae; its closest modern relative, Steller's sea cow (Hydrodamalis gigas), was hunted to extinction in the 18th century. The dugong is the only strictly marine herbivorous mammal, as all species of manatee use fresh water to some degree.
fur seal stands on its hind legs at the bottom of the sea
Beautiful lionfish in aquarium
Humphead wrasse (Cheilinus undulatus), also known as the Napoleon fish.
Leafy Seadragon, Phycodurus eques, from  Western Australia.
Endemic to the waters off south and east Australia, leafy sea dragons are closely related to seahorses and pipefish. They are perfectly camouflaged to blend in with seaweed and kelp formations.
A Steller Sea Lion, Eumetopias jubatus, (probably a young male) on a rocky islet in the Salish Sea off Vancouver, BC, Canada.
Pomacanthus imperator in reef aquarium - young, beautiful fish.
The poisonous Indian lionfish below the surface of the water on a Maldivian island
Friendly seal in search of food in the harbour alongside Smeaton's Pier at St Ives, Cornwall, England
Moon Jelly at Alaska Sea Life Center in Seward, Alaska
Group of Jellyfish calmly swimming against blue backdrop in slow motion
Underwater close-up image of a Lionfish aka Zebra fish (Pterois volitans).  These fish have venom in their spiny spiky fins.  They are a non aggressive species, often seen low on the coral reef.  However if they are provoked they will use the venom to ward off attackers.  Here we see the Lionfish opening it’s mouth wide as if yawning.  This is a defensive animal behaviour.  A way to defend it’s territory.  Their red and white stripes are warning colours for the toxins (Aposematism).  They are natural species to Asia however are invasive species in the Caribbean.  Image taken whilst scuba diving at Hin Muang, Andaman Sea, Krabi province, Thailand.  Capturing this ‘yawning’ behaviour is the ‘holy grail’ of underwater photography as it rarely happens.  Taken on Sony mirrorless camera with underwater housing and Mares EOS 12rz video torch.
Closeup of lionfish isolated near bottom of water near coral
Jellyfish Floating in Water
Vibrant coloured wrasse fish
Jellyfish floating in water, vibrant orange, pink and blue colors.
The seal is swimming in the water
Closeup of a Pelagia noctiluca in the waters of Sicily
Gray seal in Chatham Harbor at the Fishing Pier
Leafy Seadragon, Phycodurus eques, from  Western Australia.
A curious, playful pacific harbor seal face to face in the waters off Nanaimo, Vancouver Island Canada.
Seal at aquarium
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