@PhilosophyExp And there I was thinking it was two X chromosomes...
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@NotungSchwert You'll get yourself in trouble saying that sort of thing! ;) (Actually, it really is a bit more complicated than that.) -
@PhilosophyExp Yep, I realise it's complicated. But I'll use the 140 characters excuse, rather than admitting ignorance... (Both true!)
End of conversation
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@PhilosophyExp I wonder how Homo erectus managed to survive without the ability to know how to define sex.Thanks. Twitter will use this to make your timeline better. UndoUndo
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