Giant clam (Tridacna gigas), Rongelap, Marshall Islands, Micronesia, Pacific

giant clam bivalve clam close up giant hideout huge mollusc mollusca mouth reef coral reef shell siphon underwater tridacna gigas rongelap marshall islands micronesia tropical seabed day outdoors nature natural world marine life seas sea ocean oceans pacific pacific ocean clams giant clams corals coral reefs bivalves reefs horizontal