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In this underwater shot, a lumpy tan, gold, and brown coral reef sits on the ocean floor, against a backdrop of blue water.

Finger Coral and Lobed Star Coral

Colonies of finger coral (Porites furcata, center) and lobed star coral (Orbicella annularis, top of the reef), sit on the ocean floor of Punta Soldado, Puerto Rico. Towards the bottom of the structure are small patches of the green calcareous algae Halimeda opuntia.

Image Credit: NASA/Milan Loiacono
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Image CreditNASA/Milan Loiacono
Size5528x3685px