The creator of the pig-human chimera keeps proving other scientists wrong

Juan Carlos Izpisua Belmonte had spent years probing the inner workings of embryos, ferreting out the genes that give a body its shape or allow wings to form instead of legs. He’d tracked wafting chemical messengers that, like traffic police, guide streams of dividing cells either left or right.

from Pocket
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The creator of the pig-human chimera keeps proving other scientists wrong

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