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If every human can interbreed with every other and product viable, non-sterile offspring, then how could it possibly be that we aren't one species?
by ComplexSystems 3y ago
If every human can interbreed with every other and product viable, non-sterile offspring, then how could it possibly be that we aren't one species?
- InitialLastName 3y agoTo be pedantic about the fuzziness of the "species" delineation, not every human is capable of producing viable, non-sterile offspring (breeding partner notwithstanding).
- kspacewalk2 3y agoThe fact that some individuals are sterile has nothing whatsoever to do with species delineation. If there were entire pairs of population groups, say the Ainu and the Xhosa, which can no longer produce viable offspring with each other due to generic distance, then we could begin a conversation about speciation of homo sapiens. But there aren't, so we don't.