That’s the assumption, if Neanderthals were human.
But interbreeding between two species, even supposedly close ones, results in a creature that is sterile.
Either it’s fully human or we didn’t breed with them at all.
If that were the case, then why is it that most people out of africa have about 3 percent neanderthal genes
USUALLY, but not always, there are a few, very few, fertile mules.
Well as it says, we all have a tad of Neanderthal DNA thus there was not sterile interbreeding and I do think that two “different” species that interbreed successfully are by that feature a single species.