heredity
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On smell (again!).
In our polluted world, animals can’t always find their own kind to mate with. Not that all species barriers are good.
assortive mating, CAFO, CAFOs, chimera, choosing mates, choosing romantic partners, continuing evolution, cultural barriers, evolution, fish, heredity, history of violence in the U.S., human evolution, inequality, Loving, Loving v. Virginia, mating, mating based on smell, melanin, miscegenation, parental education, perfume, persistence of inequality, pollution, poverty, racism, romance, scent, skin color, slavery, smell, speciation, species, stick insects, wealth, wealth inequality, Wedekind
Frank Brown Cloud 