bird species difference
... 猛禽 bird of prey 鸟类分化 bird species difference 鸟类标志法 bird-banding ...
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岛屿鸟类的亚种分化 subspeciation of island birds
·2,447,543篇论文数据,部分数据来源于NoteExpress
现在,一份对鸡胚胎的研究,鸟类的翅膀的趾中确实有类似于人类拇指、食指和中指的趾的分化。
Now, a study of chick embryos shows that birds do indeed have thumb, index, and middle "fingers" in their wings.
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家鸽是从野鸽分化而来的,是世界上最早被人类驯化的鸟类。
The domestic pigeon, derived from the rock pigeon, is the world's oldest domesticated bird.
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