它色彩娇艳，姿态迷人，仿佛是用金银线编制而成的。他的羽枝随水流缓缓摆动，似随风摇曳的花枝，美丽极了。
举个例，他们根据现存的星椋鸟的毛色确定了一片有4.7亿年的羽毛有暗彩色光泽 。
They determined, for example, that a 47-million-year-old feather had the dark iridescent sheen found on starlings today.
虽然科学家们已经发现了更为精细的恐龙羽毛化石，但徐星表示，北票龙的这些羽毛结构依然堪称新奇。
More elaborate dinosaur feathers had already been found, but "these structures were novel, " says Xu, of Beijing's Institute of Vertebrate Paleontology and Paleoanthropology.
虽然科学家们已经发现了更为精细的恐龙羽毛化石，但徐星表示，北票龙的这些羽毛结构依然堪称新奇。
More elaborate dinosaur feathers had already been found, but "these structures were novel," says Xu, of Beijing's Institute of Vertebrate Paleontology and Paleoanthropology.
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