• ChickenLadyLovesLife@lemmy.world
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      15 hours ago

      Are you saying neanderthal didn’t exist, or was just homo sapiens? Or did you mean in the context of mitochondrial Eve?

      All of these things, actually. The measured, physiological differences between “homo sapiens” and “neanderthal” (the air quotes here meaning “so-called”) fossils are much smaller than the differences found among contemporary humans, so the premise that “neanderthals” represent(ed) a separate species - in the sense of a reproductively isolated gene pool since gone extinct - is unsupported by fossil evidence. Of course nobody actually makes that claim anymore, since it’s now commonly reported that contemporary humans possess x% of neanderthal DNA (and thus cannot be said to be “extinct”). Of course nobody originally (when Mitochondrial Eve was first mooted) made any claims whatsoever about neanderthals: the term “neanderthal” was imported into the debate over the age and location of the last common mtDNA ancestor years later, after it was noticed that the age estimates of neanderthal remains happened to roughly match the age estimates of the genetic last common ancestor. And this was also after the term “neanderthal” had previously gone into the same general category in Anthropology as “Piltdown Man”.

      Most ironically, articles on the subject today now claim a correspondence between the fossil and genetic evidence, despite the fact that the very first articles (out of Allan Wilson’s lab and published in Nature and Science in the mid-1980s) drew their entire impact and notoriety from the fact that the genetic evidence (which supposedly gave 100,000 years ago and then 200,000 years ago as the age of the last common ancestor) completely contradicted the fossil evidence (which shows upright bipedal hominids spreading out of Africa more than a million and half years ago). To me, the weirdest thing is that academic articles on the subject now almost never cite these two seminal articles at all, and most authors seem genuinely unaware of them.