An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.
宏进的一个例子是鸟在从兽角亚目的恐龙进期间羽毛的出现。
An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.
宏进的一个例子是鸟在从兽角亚目的恐龙进期间羽毛的出现。
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