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Hans Spemann used a baby's hair from his daughter to "lasso" a cell in a newt at the 8-cell stage, creating an extra embryo (the first cloning!) but also finding that doing it in a different direction produced one embryo and just a cell mass. https://t.co/Htl40RmCVn https://t.co/3hMteTRvzT #Cloning #Embryology #ScientificDiscovery #Thetweetdoesnotexplicitlymentionanyspecificcountries.Therefore #therearenocountrycodestoreturn.

Spemann got the Nobel prize for finding the "organizing centers" of frog embryos this way... research that was originally due to Hilde Proescholdt (later Mangold). He added his name to her dissertation, over her objections. #NobelPrize #Embryology #ScienceEthics #Therearenospecificcountrynamesmentionedinthetweet.Therefore #nocountrycodescanbeprovided.