Frequency-dependent selection and left-handed people

According to some authors, the frequency of left-handed people in the population is regulated by frequency-dependent selection. Left-handed people are at an advantage in battles and fist-fights (and also in a number of sports) as their opponents are not prepared for their fighting methods because there are fewer of them in the population than right-handed people. Comparative studies on a large number of traditional human populations have actually shown that that the frequency of left-handed people (3–27%) is directly dependent on the amount of violence in the population (specifically, the number of violent deaths).

Was this information useful for you?
You voted 'not at all'.
The classical Darwinian theory of evolution can explain the evolution of adaptive traits only in asexual organisms. The frozen plasticity theory is much more general: It can also explain the origin and evolution of adaptive traits in both asexual and sexual organisms Read more