A bright cup coral, Tubastrea sp., grows on a remote reef in Raja Ampat, Indonesia.

actiniaria anatomy animal themes animals in the wild anthozoa close up cnidaria color image colorful coral coral reef coral triangle cup coral day detail directly above full frame horizontal indonesia macro magnification marine biology melanesia mouth nature new guinea no people orange outdoors pacific ocean papua photography polyp porifera raja ampat science sea sea anemone sea life southeast asia species sponge sun coral tendril tentacle tubastrea tube coral underwater vibrant wildlife yellow zoology