探险家罗伊·查普曼·安德鲁斯当时认为，鲸鱼一定是一种返祖的陆地生物。

Explorer Roy Chapman Andrews argued at the time that the whale must be a throwback to a land-living ancestor.

youdao

探险家罗伊·查普曼·安德鲁斯当时认为，鲸鱼一定是一种返祖的陆地生物。

Explorer Roy Chapman Andrews argued at the time that the whale must be a throwback to a land-living ancestor.

youdao