Darwin recognized that female preference for showy colors based on inheritance causes these male traits to become more common over time.

Female Preference

In evolutionary biology, the behavioral tendency of females to choose certain males as mates, based on traits that indicate genetic fitness.

Showy Colors

Bright and conspicuous colors often found in animals and plants, typically used for attracting mates, warning predators, or other signaling purposes.

Inheritance

The genetic process by which traits and characteristics are passed from parents to their offspring.