澳大利亚悉尼大学的爬虫学者瑞克.谢利（RickShine）说，“胎生在爬虫类动物中有了成百倍的进化，所以它们不再多产也很正常。

"Viviparity has evolved about a hundred times in reptiles," said herpetologist Rick Shine of the University of Sydney in Australia.

youdao

澳大利亚悉尼大学的爬虫学者瑞克.谢利（RickShine）说，“胎生在爬虫类动物中有了成百倍的进化，所以它们不再多产也很正常。

"Viviparity has evolved about a hundred times in reptiles," said herpetologist Rick Shine of the University of Sydney in Australia.

youdao