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The remains, shell, or exo skeleton of a sea urchin by a coastal rock pool.
A woman on the beach holds two medium-sized young lively sea urchins from the Aegean Sea.
Detail of hard coral. Underwater life of a coral reef close up, ideal for texture or screensaver
This image shows several sea urchins, with one opened to reveal its bright yellow insides. The sea urchin's shell is covered with black spines, creating a sharp contrast. The background consists of light-colored ice, highlighting the details of the sea urchin.
Close-up of sea urchins , ready to eat
Sea urchin on wood column
Black sea urchin oral face ,  Arbacia lixula
View of a female sea-urchin.
Sea urchin on a rocky beach
Serene underwater environment surrounding Boracay Island, located in the Philippines. The image showcases a stone coral formation with a black urchin resting upon it. The black urchin is characterized by long, slender needles. The underwater scene features clear blue water with visible sunrays, adding a touch of natural illumination to the photograph.
This image shows several sea urchins, with one opened to reveal its bright yellow insides. The sea urchin's shell is covered with black spines, creating a sharp contrast. The background consists of light-colored ice, highlighting the details of the sea urchin.
Urchin macro photography сlose up. In the water.
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.
Sea creatures on the Pacific beach at Washington state during the low tide
A sunburst sea anemone in a tidal pool on the coast of Newport Beach, California during the winter.
male hand with a blue starfish against green water of the indian ocean
Sea urchin shells of various colours
Echinoidea sea urchins, a group of marine animals belonging to the type of echinoderms Echinodermata, characterized by a spherical shape, .Zanzibar near the town of Jambiani
Sea anemones off the west coast of Vancouver Island.
A black and white photo of a spiky plant. The plant is surrounded by dirt and rocks
Man preparing raw sea urchins, also called garoines.
A sea urchin stranded on the shoreline at low tide.
Crown of thorns starfish, Acanthaster ellisii, Sea of Cortez, Mexico. Sea star. Red and orange starfish on a rock.
Coral reef in  indian ocean in Kenya. Ocean life.
Asthenosoma varium is a large urchin (25 cm) with flattened, flexible test (the plates are articulated rather than fused). Very mobile, short spines, arranged in rectangular areas, separated by spineless areas. Spines have a blue swelling close to the tip, filled with venom.Living in bay, lagoon, external reef; on sandy or rubble bottoms. The flexible test allows, changing the shape, to enter very narrow crevices. The swollen shape of the spines and the flexible test are unique features. \nAsthenosoma varium sting can be very painful, a strong local pain due to venom injection can last for hours.\nThis specimen was encountered in a very shallow tunnel in the Triton Bay, Indonesia \n3°54'51.39 S 134°7'24.81 E at 2m depth
Sea urchin sits on a stone. Prickly mollusc sometimes creeps into the area of a beaches and  swimming people.
This is a photograph taken on a mobile phone outdoors in during the summer of 2020 of a green anenome under water at low tide on Bandon Beach, Oregon.
Fresh sea urchins, ricci di mare, on a rock, close up, selective focus. A typical dish of Salento, Puglia, is eaten raw with bread, or made with pasta. Southern Italy. Seafood backgound.
Close-up of Sea urchins or urchins, also known as sea hedgehogs, lying on the sand.
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