Blue Christmas tree worm (Spirobranchus giganteus), Cairns, Queensland, Australia, Pacific

Christmas tree worms (Spirobranchus giganteus) grow on a coral reef in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.

A red, white and yellow Christmas tree worm (Spirobranchus giganteus), on coral, Curacao.

Christmas tree worms (Spirobranchus giganteus) on brain coral, Saint Croix, U.S. Virgin Islands.

A pair of Christmas tree worms in Cozumel, Mexico.

Multiple christmas tree worms, Curacao.

Yellow Christmas tree worm (Spirobranchus giganteus), Beqa Lagoon, Fiji.

Blue Christmas tree worm (Spirobranchus giganteus) Beqa Lagoon, Fiji

Christmas Tree Worm in hard coral, Bonaire, Caribbean Netherlands.

Christmas Tree Worm in fire coral, Bonaire, Caribbean Netherlands.

Macro image of a Christmas Tree Worm, Bonaire, Caribbean Netherlands.

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

White crown calcareous tube worm in Malaysia.

Christmas tree worm in Raja Ampat, Indonesia.

Close up deatail of glowing red and orange Christmas Tree Worm showing spiral shape. Cayman Islands.

Two, Christmas tree worm (Spirobranchus giganteus) on stone coral (Porites), Red Sea, Aqaba, Kingdom of Jordan