On the other hand, Confuciusornis, which possessed the first beak and earliest pygostyle, or fused tail vertebrae that supported feathers, truly looks like a bird.
而另一方面,首先出现喙形结构和最早尾综骨(用于支持羽毛的融合尾椎骨)的孔子鸟与现代鸟类之间几乎不存在什么不一样的地方。
Ranging from one inch to five, the gene that normally stops vertebrae elongation is decreased and the human tail remains at birth.
尾骨的分布从1寸到5寸,正常情况下抑制尾骨延长的基因已经减少,而人类的尾巴停留在出生时的长度。
Ranging from one inch to five, the gene that normally stops vertebrae elongation is decreased and the human tail remains at birth.
尾骨的分布从1寸到5寸,正常情况下抑制尾骨延长的基因已经减少,而人类的尾巴停留在出生时的长度。
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