It Doesn’t Stop

Nowadays, we also can change our environment. Some West African populations cut clearings in the rain forest to cultivate yams; as a result of more standing water, more malaria-carrying mosquitoes bread; malaria, in turn, increased the frequency of the gene for sickle cell anemia in the population, because this gene offers protection against malaria. So cutting down trees resulted in more people having sickle cell anemia. When we modify our environment, these modifications can bounce back to influence our biology and psychology. [The Aesthetic Brain: How We Evolved to Desire Beauty and Enjoy Art (2013), Anjan Chatterjee]

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