In 2012, Xiaoping Ren published work in which he grafted the head of a mouse onto another mouse's body; again the focus was on how to avoid harm from the loss o

In 2012, Xiaoping Ren published work in which he grafted the head of a mouse onto another mouse's body; again the focus was on how to avoid harm from the loss of blood supply; with his protocol the grafted heads survived up to six months.[1] That's wild, but the more I think about it, the more I wonder if there's really all that much we don't know about how to transplant a head onto another body, if it's just to keep the donor alive (that is, what we don't know may not stop us from being successful putting a second head on to someone and connecting the blood supply so the brain survives). 1: https://en.wikipedia.org/wiki/Head_transplant https://en.wikipedia.org/wiki/Head_transplant