Fiorella never bought into the idea that Homo Sapiens killed off the Neanderthals. Instead she theorized they died off because of problems with crossbreeding, that the maturity or birthweight of the mixed-breed babies killed off both the mother and the child--or something like that. It turns out Fio was wrong in the particulars, but, according to the latest DNA studies, was headed in the right directions: a Harvard Medical School report suggests that the male offspring of a Neanderthal-Homo Sapiens had a reduced fertility rate. Get enough of that going, and--well--nothing gets going.
Any other scientific inquiries you'd like Fio to ponder on?
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