299:兽族崛起丨与巨龙同行
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Manage episode 266155634 series 70694
真正的哺乳动物是什么时候出现的?哺乳动物的那些重要特征,比如毛发、胎生、哺乳,又是什么时候发展出来的?为什么说,恐龙时代的哺乳形类动物,也不全是”苟且偷生“的模样?一起回到侏罗纪,看看那些与巨龙同行的祖先吧!
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