William D. Hamilton

William D. Hamilton was a British evolutionary biologist known for his groundbreaking work in the field of genetics and evolutionary theory. He is best known for proposing the concept of "kin selection," which explains how certain behaviors, like altruism, can evolve in animals when they help relatives. This theory emphasizes the idea that helping family members can enhance the survival of shared genes. Hamilton also developed models for the evolution of mating systems and the dynamics of sexual reproduction. His insights have significantly influenced our understanding of social behavior in animals and the evolution of cooperative traits.