Fisher's Theory of Mate Choice

Fisher's Theory of Mate Choice suggests that certain traits become desirable because they signal good genes, increasing an individual's chances of reproductive success. Specifically, he proposed that bright colors, elaborate displays, or strong features can indicate health and vitality. Over time, these traits become more attractive, leading to a preference for individuals who possess them. This choice amplifies those traits in the population, a process called “runaway selection,” ultimately shaping what is considered attractive and influencing the evolution of appearance and behavior in species.