Pair of orange and red christmas tree worms on top of yellow hard coral, Pulau Aur, Johor, Malaysia.

annelid christmas tree worms johor malaysia polychaete pulau aur serpulidae spirobranchus giganteus animal animal themes animals in the wild aquatic close up cnidaria color image day detail extreme close up hard coral horizontal macro marine biology natural patterns nature no people orange outdoors photography polychaete worms red reef science sea life spicules spiral gilled tubeworm tubular undersea underwater wildlife zoology