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Sea urchins are small, spiny, globular animals.
Coral reef, Heron Island Australia
Common starfish on rocky bottom underwater  in the St. Lawrence River
chinese medicine akebiaquinata caulis akebiae Akebia quinata Decne.
A close up view of a nudibranch which is sitting on a coral. There are tiny red creatures on its back resembling red fleas
soft coral crab - hoplopphrys oatesil on a red soft coral in Lembeh
Jellyfish and sea jellies are the informal common names given to the medusa-phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria. Jellyfish are mainly free-swimming marine animals with umbrella-shaped bells and trailing tentacles, although a few are anchored to the seabed by stalks rather than being mobile. The bell can pulsate to provide propulsion for highly efficient locomotion. The tentacles are armed with stinging cells and may be used to capture prey and defend against predators
Moray Eel
Red sea coral reef in Makadi Bay, Egypt,
Aurelia aurita (also called the common jellyfish, moon jellyfish, moon jelly or saucer jelly) is a species of the genus Aurelia.
Coral on White Background
Underwater Blotched picarel fish deep in sea Sea life Mediterranean sea  Scuba diver point of view of modraka,   tragalja Spicara maena
What looks like an eye is actually this (Diadema antillarum) sea urchin'€™s anal sac. The low tide reveals dozens of sea urchins such as this one on any given stretch of beach near Jungutbatu village, Nusa Lembongan, Bali, Indonesia.
Waigeo island, Raja Ampat, West Papoua, Indonesia
underwater scene with coral reef and fish; Surin Islands; Thailand.
Punta Espinoza is a stretch of land where hundreds of Marine Iguana gather together on the lava rocks
Macro photo of a starfish tentacles glowing neon underwater
The Nassau grouper (Epinephelus striatus) a nautical vessel and the beautiful marine life in Little Cayman - Cayman Islands
Orange tiny clown fish hiding on a blue anemone
Neoclinus stephensae, known commonly as the Yellowfin fringehead in the United States, is a species of chaenopsid blenny in the genus Neoclinus. Monterey Bay, California
Underwater shot of colorful coral reef in clear blue water
Coral covered sea floor in bright blue pacific ocean with pylons in the background
Coral reef, Heron Island Australia
Underwater scenic in Curaçao
I took this photo in Lembeh, Manado, Indonesia
Jellyish are free-swimming marine animals found along costal waters.
Gorgonian, Sea Fan, Sea Whips, Coral Reef, South Ari Atoll, Maldives, Indian Ocean, Asia
Water animals Underwater John Dory, St Pierre, Kovac or Peter's Fish, refers to fish of the genus Zeus, deep in sea Sea life Mediterranean sea Scuba diver point of view
Coral reef in the sea. Marine life close up. Colorful coral. Wildlife concept. Saltwater corals. Exotic nature. Scuba diving. Aquarium life. Tropical nature.
Colorful Lichens on the Welwitschia Drive, Namib-Naukluft National Park, Namibia. Namib Desert.
Free Images: "bestof:urchin echinoderm spines sea animal ocean marine underwater natural aquatic beach tropical calcareous exotic seaside coral ecology creature sea-urchin wildlife"
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