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Yellow Feather star ( Crinoid ) - Sea lily on Maldives
Corals in the form of tentacles on a reef.
Colorful Coral Reef Teeming with Exotic Fish. Lively and colorful coral reef in a vibrant underwater world. Diverse array of tropical fish swimming freely in their aquatic environment, creating a mesmerizing scene for nature and animal enthusiasts alike.
Red Sea migrant sea urchins on Turkey's Aegean coast
An underwater scene in Boracay Island, Philippines. The image showcases a coral reef with a blue starfish positioned at the center. The reef is adorned with various types of corals, including brain corals, stony corals, and branched formations. The water is clear and blue, allowing visibility of sunrays penetrating the surface. No fish are visible in the photograph.
sea bottom with fish and algae as a background
View of  coral in lagoon of New Caledonia
The Mediterranean seagrass (Posidonia oceanica) and the invasive red seaweed (Asparagopsis armata) in La Ciotat (South of France).
Tropical sea underwater fishes on coral reef. Vibrant striped fish swimming amidst a colorful coral reef ecosystem.
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.
Tropical coral reef seascape with fishes, hard and soft corals. Philippines.
Scuba diving. Beautiful sea life. Underwater scene  at coral reef (  Prickly alcyonarian, finger coral,  Fire sponge ) . School of red sea fish ( scalefin anthias ). Pseudanthias squamipinnis .
Small fish live and hide amongst the underwater coral gardens of the Great Barrier Reef
Flamingo Tongue (Cyphoma gibbosum) against dark background, off coast of Roatan Honduras
Tropical aquarium, tropical waters sea anemone macro close up tentacles
Sea Fan, Sea Whips, Gorgonian, Reef Building Corals, Coral Reef, Lembeh, North Sulawesi, Indonesia, Asia
A Skunk Anemonefish Clown fish (Amphiprion ephippium) is in a Magnificent Sea Anemone (Heteractis magnifica). The Anemone has stinging venom coated polyps, which the Anemone fish has the ability to cover its body with and use as protection from predators.  In return, the Anemone fish constantly eats parasites from the Anemone, keeping it clean.  A perfect demonstration of a symbiotic relationship in nature.  The location is Phi Phi islands, Andaman Sea, Krabi Province, Thailand.
Underwater photography of coral and marine life
beautiful colorful small corals underwater
Banded Coral Shrimp
Close up of Multicoloured sea fans with a feather starfish underwater
Long-spined sea urchin (Diadema antillarum) on the coral reef of Guadeloupe (Caribbean, France)
Sabella spallanzani is a species of marine polychaete worm commonly known as the European fan worm or feather duster worm. It belongs to the family Sabellidae and is widely distributed in the coastal waters of the Mediterranean Sea and the northeastern Atlantic Ocean. The worm has a slender and elongated body that can reach lengths of up to 30 centimeters. Its most striking feature is its ornate crown of feathery, fan-shaped tentacles called radioles, which are used for filter-feeding and respiration. The radioles come in various colors, including shades of white, yellow, orange, and pink, adding a vibrant touch to the underwater landscape. Sabella spallanzani is a fascinating and beautiful creature that contributes to the biodiversity of marine ecosystems.
Tropical fish swimming through the open water over coral reef
Pipper Fish, Trigla lyra, Cabo Cope-Puntas del Calnegre Natural Park, Mediterranean Sea, Murcia, Region de Murcia, Spain, Europe
Sea life, close up, macro   Beautiful multicolored white, purple and orange Nudibranch. Underwater beauty Scuba diver point of view. Underwater photo.
Starfish
A Napoleon Wrasse (Cheilinus undulatus) in the Red Sea
school of purple fish in Jamaica
Bunte Unterwasserwelt
Free Images: "bestof:Circeaster pullus.jpg en A deep-sea sea star Circeaster pullus seen feeding on bamboo coral off Hawaii Lone Cone at 2580 m depth by Okeanos Explorer mission"
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