Coral wallpapers in "Marine life" section

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Wallpaper(s) found for: coral in Marine life

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A hard stony substance secreted by certain marine coelenterates as an external skeleton, typically forming large reefs in warm seas. A sedentary coelenterate of warm and tropical seas, with a calcareous, horny, or soft skeleton. Most corals are colonial and many rely on the presence of green algae in their tissues to obtain energy from sunlight. The unfertilized roe of a lobster or scallop, which is used as food and becomes reddish when cooked.