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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.
Zebra shark, Stegostoma fasciatum, also called the leopard shark, is a species of carpet shark and is found throughout the tropical Indo-Pacific.
Marble Angelfish (Pterophyllum scalare) - Freshwater Fish
Blackspotted rockfish, is a rockfish of the Pacific coast, Seward, Alaska
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
One big fish swimming in the sea in front of a school of fish, underwater.
Ptereleotris evides, the Blackfin dartfish, occurs in outer reef slopes, also inhabits lagoons and bays. Usually in pairs as adults and in small aggregations as juveniles. High quality photo
Underwater large arapaima
European seabass or dicentrarchus labrax swimming alone
Red tailed catfish
A large sturgeon floats under water and looks into the chamber
Hexagrammos lagocephalus is a colorful marine fish with the common name rock greenling in the greenling family.
Harbor Seal diving underwater (Phoca vitulina) or Common Seal
beautiful photo of auranti channa fish
A tropical ornamental fish swimming in the glass wall of the aquarium
European barbel (Barbus barbus). Wildlife animal.
titan triggerfish
fur seal stands on its hind legs at the bottom of the sea
Channa maculata swimming in fish tank. An omnivorous fish that lives in the Mekong Delta is used to feed farmers during floods
Sorubim lima catfish - Freshwater fish
fur seal lying on the water
Tropical fish swimming in the aquarium
Tropical pangasius fish shark catfish in underwater sea as nature sea life background
Moon Jelly at Alaska Sea Life Center in Seward, Alaska
Dangerous shark swimming underwater. Marine life
A beautiful goldfish swimming in an aquarium,
Alive sturgeon in the aquarium
A Steller Sea Lion, Eumetopias jubatus, (probably a young male) on a rocky islet in the Salish Sea off Vancouver, BC, Canada.
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