supposedly neanderthals went extinct thanks to cro-magnon/homo sapiens taking over their land and mixing
for some reason the Neanderthal Y genes could not mix with the sapiens X genes so that gene has disappeared https://med.stanford.edu/news/all-news/2016/04/modern-men-lack-y-chromosome-genes-from-neanderthals.html
supposedly neanderthals went extinct thanks to cro-magnon/homo sapiens taking over their land and mixing
for some reason the Neanderthal Y genes could not mix with the sapiens X genes so that gene has disappeared https://med.stanford.edu/news/all-news/2016/04/modern-men-lack-y-chromosome-genes-from-neanderthals.html