well worth reading to the end > it might pay the host to carry a fairly harmless parasite if that infection is lethal to the host's competitors They pointed o

well worth reading to the end > it might pay the host to carry a fairly harmless parasite if that infection is lethal to the host's competitors They pointed out that homo sapiens contracted one type of lice from homo erectus, and then wonder if horizontal transmission of infections in the other direction could have lead to the demise of erectus, similar to the staggering deaths of indigineous south americans brought on by the conquestadore. And then there's this gem > Human brutality is another feature shared with chimpanzees that has survived in the human lineage [30]. It is too bad that we are not closer to the pygmy chimp (bonobo), which evolved a means of conflict resolution between troupes through alpha females engaging in lesbian sex. But that is another story.