Wild Ram
Member
The Neanderthals were the closest relatives of modern humans, they lived in Europe and Asia until 40.000 years when they became extinct. In 2010 the Neanderthal genome was sequenced, they discovered the DNA of anyone outside of Africa is around 2% of Neanderthal origin, suggesting that an interbreeding occurred between the two species when humans left Africa. However, not everybody carries the same Neanderthal genes, but each one can have different Neanderthal sequences in his DNA, making possible around 20% of total Neanderthal DNA survived in humanity as whole. Many of these Neanderthal genes could be beneficial, helping in adaptations for environments outside Africa, while others harmful, related with diseases like lupus or diabetes, but most are inactive material. Recently was discovered even africans can have some amount of Neanderthal DNA, possibly due back migrations to Africa.
https://www.livescience.com/42933-humans-carry-20-percent-neanderthal-genes.html
https://edition.cnn.com/2020/01/30/africa/africa-neanderthal-dna-scn/index.html
