From disastrous scientific setbacks to the upending of scientific dogma and the end of a 40-year search for a protein
Jiankui He shocked the world with news his team had created the first genetically modified twin girls. Now he says there may be more on the way.
Chinese geneticist He Jiankui’s claim to have altered embryos prompts outcry from scientists
Successful correction of genetic problems in mice before birth raises hopes of similar treatments for humans
“If you have pigs with partly human brains you would have animals that might actually have consciousness like a human,” Newman says. “It might have human-type needs. We don’t really know.”