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Evolutional and biological aspects of placentophagia
Anthropologischer Anzeiger, 2007Over the last 30 years it could be observed that a very small minority of modern humans consumes the human placenta that belongs to the afterbirth. This behavior, which is known by the technical term of placentophagia, is the focal point of the present essay.
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Biological externalities and evolution: A comment
Journal of Theoretical Biology, 1973Abstract Tullock's illuminating article in this Journal (1971) uses the economic theory of externality to anlyze the natural equilibira of biological systems where species interact. He demonstrates that the natural system does not attain a Pareto optimum—that it would be possible to increase both species (in a two-species model) by appropriate ...
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Risk management in biological evolution
Journal of Theoretical Biology, 2003I present a framework to study the evolution of traits that allow an organism to survive life-threatening but rare risks. Specifically, I am concerned with risks so rare that any one individual in a population may not experience the risk-causing event in its lifetime.
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A comparison of biological and cultural evolution
Journal of Genetics, 2015This review begins with a definition of biological evolution and a description of its general principles. This is followed by a presentation of the biological basis of culture, specifically the concept of social selection. Further, conditions for cultural evolution are proposed, including a suggestion for language being the cultural replicator ...
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Biological evolution requires an emergent, self-organizing principle
Progress in Biophysics and Molecular Biology, 2023Olen R Brown
exaly