Detail of coral polyps, Tubastrea sp., growing on a healthy reef in Raja Ampat, Indonesia.

abstract abundance actiniaria anatomy animal animal patterns animal themes anthozoa close up cnidaria color image coral coral reef coral triangle cup coral day dendrophylliidae detail full frame gorgonian growth horizontal indonesia macro magnification marine biology melanesia nature new guinea no people outdoors pacific ocean papua pattern photography pink polyp raja ampat science sea anemone sea life southeast asia species stony coral sun coral texture tubastrea tube coral underwater vibrant wildlife zoology