When human ancestors left Africa and met Neanderthals in Europe 50,000 years ago, they had children together and clues were left behind in modern human DNA.
원문출처 : https://www.cnn.com/2020/04/27/world/neanderthal-parents-denisovan-iceland-genes-scn/index.html
원문출처 : https://www.cnn.com/2020/04/27/world/neanderthal-parents-denisovan-iceland-genes-scn/index.html