An Opinion On “Most People Carry Neanderthal Genes”
Chris, it means a scientist sees some evidence that will allow them to continue on in the publish or perish academic world. That they found genetic traits common in modern humans of post-African ancestry and Neanderthals. They decided to argue this is because of cross species sex way back when. This isn’t the only argument you could make. With DNA evidence, scientist have discovered a number of species they thought were one species are two or more. One example, the White Rhino was though to be one species, but while unchanging in form, the East African and the Southern African population of the White Rhino, while looking the same, have been isolated from each other for so long they constitute two distinct species that can no longer interbreed. I have reciently read what was once though to be one species of Giraffe is now viewed as five species. With the Human/Neanderthal genetic similarity, some might argue they are simply different races of the same species.
But another arguement can be made of similar evolutionary circumstances inspired similar genetic developments. A while back, it was published that examination of Neanderthal DNA showed the same Genes for reddish or blond hair occured in both Neanderthals and Mammoths. If the genes for Red hair are one of those traits, does that argue some old time redhead got very wierd with a mammoth? Or do similar environmental circumstances forment similar genetic responses? Somehow I think the latter is more likely. Since it is argued that blond hair and blue eyes are traits that developed over the last 10,000 years, if these traits also appeared in Neanderthals, who died out long before, it could well be these are genetic traits encouraged by the environment of Northern Europe. I noticed the story did not spell out what those traits are, did you?
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