Giant giant clam (Tridacna gigas) siphon.

The Abstract Beauty of Giant Clams

An up close perspective of brilliant behemoth bivalves

They can reach up to 4 feet tall and 500 pounds, but size isn’t the only impressive thing about giant clams. Their mantles — that is, the fleshy parts lining the opening of the shell — come in a brilliant variety of colors, patterns, and striations, created by their diet of plankton and resident algae. Check out these extreme closeups of the behemoth bivalves, and fall into the kaleidoscope…

Mantle Pigmentation of Giant Clam, Tridacna Squamosa, Micronesia, Palau Reinhard Dirscherl Underwater close up view of tridacna maxima (giant clam) at Beveridge Reef, Niue, South Pacific Cultura Exclusive/Richard Robinson
Philippines, The Exhaust Opening In The Mantle Of A Giant Tridacna Clam (Tridacna Gigas).
Giant Clam (Tridacna gigas) mantle detail, Indonesia
Dave Fleetham /Design Pics (top), Chris Newbert/Minden Pictures (bottom) Giant clam (Tridacna gigas) detail, Dumaguete, Negros Island, Philippines Oxford Scientific Giant Clam (Tridacna gigas), detail of mantle, Palau Chris Newbert/ Minden Pictures Egypt, Red Sea, Hurghada, squamose giant clam, close-up Westend61 Kingman Reef, Pacific Ocean. Brian J. Skerry Fluted Giant Clam at night, Koh Bon Bay, Similan Islands Underwater Park, Thailand Danita Delimont Giant Clam (Tridacna sp), mantle detail, 20 feet deep, Solomon Islands Birgitte Wilms/ Minden Pictures