Christmastree worms shelter a goby (at left) in their coral reef habitat.
圣诞树蠕虫在珊瑚礁栖息地庇护一只虾虎鱼(左)。
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When the image of the royal family next to the 40 foot Christmastree was published in an American magazine in 1848, the custom caught onthe United States as well.