Giant clams (Tridacna maxima) symbiotically photosynthesize in the shallow, sun-drenched lagoon of Orona Island, an uninhabited atoll in the Phoenix Islands Protected Area.
Giant Clams
Dr. Randi Rotjan / PIPA / Boston University. Download larger version (jpg, 4.6 MB).

Giant clams (Tridacna maxima) symbiotically photosynthesize in the shallow, sun-drenched lagoon of Orona Island, an uninhabited atoll in the Phoenix Islands Protected Area.

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