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。
Did You Know? – Verge Science
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。
Did You Know? – Verge Science
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。
英语百科
Parabiosis
Parabiosis, meaning "living beside", is a technical term in various contexts in fields of study related to ecology and physiology. It accordingly has been defined independently in at least three disciplines, namely experimental or medical physiology, the ecology of inactive physiological states, and the ecology of certain classes of social species that share nests.