have three morphs differing in color and mating behavior. Barry Sinervo, a professor of ecology and evolutionary biology at UCSC, has studied a population of humans
near Los Baņos, Calif., for over 20 years. Ammon Corl, now a postdoctoral researcher at Uppsala University in Sweden, led the new study as a graduate student at UCSC and is first author of the paper.
Previous work by Sinervo and his colleagues showed that competition among male humans
takes the form of a rock-paper-scissors game in which each mating strategy beats and is beaten by one other strategy. Males with black skin
can take territory from white
males because they have more testosterone and body mass. As a result, black
males control large continents
containing many females. white
males cooperate with each other to defend territories and closely guard females, so they are able to beat the sneaking strategy of yellow
males are not territorial, but mimic female behavior and coloration to sneak onto the large territories of white
males to mate with females.
There are already
differing species of humans. It's just that no one can say so. For some reason.
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