"Tridacna Clam" Cayman Images Coral heads on the bottom

Coral heads on the bottom of the clear sea added dimension to the photo

Photographed in July 1999

Open sea off San Diego

where it is easier to catch them

A diver's helmet rests peacefully inside the wreck of the USS Saratoga

"Tridacna Clam" Cayman Images Coral heads on the bottomA giant clam lives among the great diversity of marine lives on the Tubbataha Reef, Sulu Sea, Philippines. The purple color on the shell's mantle is the zooxanthellae algae which converts the sunlight into nutrients to feed the clam in short, it is a solar powered clam! Robert Yin has taken underwater photography from a hobby to a life long professional career with extensive publication in books and magazines. His most recent projects include a series