The ocean is one of the main attractions in human lives all around the world. There are a large number of animals in the oceans. And one of them is Christmas tree worm. Known to marine biologists as Spirobranchus giganteus, Christmas Tree Worms are species of tube-building polychaete worms belonging to the Serpulidae family. They’re called Christmas Tree Worms because they look like Christmas trees with the wonderful beauty make a shining ocean.