A giraffe acquired the genetic specification for a long neck through generations of browsing upon the upper foliage of trees.
长颈鹿获得遗传的特征长脖子是由于它们世世代代啮食树上部的树叶的原故。
A giraffe acquired the genetic specification for a long neck through generations of browsing upon the upper foliage of trees.
长颈鹿获得遗传的特征长脖子是由于它们世世代代啮食树上部的树叶的原故。
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