The sight of a Christmas tree worm is enough to fill any diver with joy, and the best thing about them is they are all-season creatures. So named for their resemblance to little Christmas trees, the conical spirals that characterize them are actually vital to the organism’s survival, as they are responsible for feeding and respiration. If you’ve ever come upon one on a dive, you probably know they are rather shy, and will disappear into their tube at the slightest disturbance. Due to very few natural predators, and a purely aesthetic human interest for aquariums, the Christmas tree worm can be found abundantly in tropical waters around the world. Keep your eyes open for them on large groupings of coral, and enjoy your Christmas whatever time of year it may be!