New human-mouse chimera is the most human yet

Dec 13, 2019
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A newly-created mouse-human embryo contains up to 4% human cells — and those cells had learned to tick like mouse cells.

New human-mouse chimera is the most human yet : Read more
They are just getting the world slowly used to the idea...and within a decade or so we will see the ultimate 50/50 bred chimeras....and that is how we humans may have come into existence, but via natural animal antics, so it's not such a surprising idea ! If you have never considered the idea maybe you'd be interested in a Geneticist's theory of many years :
 

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