Joel Sartore Joel Sartore

National Geographic Photographer and Speaker

Photo: Little brown barnacle (Chthamalus dalli) and the white Acorn barnacle (Balanus glandula) cluster on the shell of a California mussel (Mytilus californianus) at the University of California, Davis.

FIS023-00247

Little brown barnacle (Chthamalus dalli) and the white Acorn barnacle (Balanus glandula) cluster on the shell of a California mussel (Mytilus californianus) at the University of California, Davis.

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