A colorful soft coral adorns a giant clam, Tridacna sp., growing on a healthy reef in Raja Ampat, Indonesia.

alcyonacea animal animal themes animals in the wild anthozoa aquatic awe beauty beauty in nature biodiversity bivalve branch clam cnidaria color image colorful coral coral reef coral triangle day dendronephthya ecology ecosystem endangered species flores fragility giant clam gorgonian growth heterodont horizontal indo pacific ocean indonesia invertebrate large living organism majestic marine biology melanesia mollusk nature new guinea no people ocean oceania octocoral outdoors photography pink raja ampat reef reefscape rinca sea sea fans sea life soft coral southeast asia species sunlight symbiosis symbiotic relationship tridacna tridacna gigas tridacninae tropical climate undersea underwater vibrant west papua wilderness wildlife zoology