An Ancient Battle Is Playing Out in the DNA of Every Embryo July 17, 2023, 06:23:50 AM An Ancient Battle Is Playing Out in the DNA of Every Embryo[html]Millions of years ago, retroviruses invaded the human genome. Today some of these viral remnants threaten the developing embryo, while others fight to defend it.[/html]Source: An Ancient Battle Is Playing Out in the DNA of Every Embryo (http://ht**://www.wired.c**/story/an-ancient-battle-is-playing-out-in-the-dna-of-every-embryo/) Quote Selected