Why does Homosexuality Evolve?

The video explores the evolutionary paradox of homosexuality, questioning why natural selection hasn't eliminated it. It discusses historical and animal perspectives, showing that homosexual behavior is common across species. The genetic basis is examined through twin studies, suggesting a genetic component. Various hypotheses are presented, including social bonding benefits, inclusive fitness, overdominance, and sexual antagonism. The complexity of same-sex behavior is highlighted, with multiple factors influencing it. The video concludes by acknowledging the complexity and suggesting further resources for understanding evolution.

What role does social bonding play in the potential evolutionary advantages of homosexuality?

How does the inclusive fitness hypothesis explain the reproductive success of homosexual individuals' relatives?

What is the significance of overdominance in the context of homosexual alleles?