Researchers CRISPR chickens in bid to protect them from bird flu

LeonNeal/GettyImagesLONDON—Inthiscase,itwasneitherthechickennortheeggthatcamefirst.Rather,itstartedw ERICBARADAT/AFP/GettyImagesLastsummer,IthoughtitmightbefuntohavemyDNAanalyzed.Twocompanies,23andMean




comprehensive

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Drs. Ben Carson, right, and Donlin Long with a brain model of the conjoined twins that were separated in a surgery performed at Johns Hopkins Hospital in September 1987. Fred Kraft/AP

Siamese twin separation that launched Ben Carson’s fame ended poorly for twins

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