TIL that Eurasian people have 1-4% of Neanderthal DNA, which may have a significant impact on human traits, such as predisposition to depression and tobacco addiction. User BookwormJane, in the Today I Learned (TIL) subreddit, 14 Nov 2016
The phenotypic legacy of admixture between modern humans and Neandertals User peterdfields, in the Genome Science subreddit, 12 Feb 2016