Are you really not familiar with parabiosis?

你真的不熟悉异种共生吗？

Historically, people have tested that idea with a creepy procedure called parabiosis.

从历史上看，人们用一种叫做异种共生的令人毛骨悚然的程序来测试这个想法。

So parabiosis is basically taking two animals, cutting them up, and sewing them together.

所以异种共生基本上就是把两只动物切开，然后缝合在一起。

Since 2005, there's been a lot more research in to parabiosis in young blood.

自 2005 年以来，对年轻血液中的异种共生现象进行了大量研究。