Intersexual selection is a type of natural selection where individuals of one sex choose mates based on certain traits. This often occurs in species where females select males with specific characteristics, such as bright colors or elaborate displays. These traits can signal the male's health, genetic quality, or ability to provide resources. This process can lead to the development of pronounced features over generations, as those with preferred traits are more likely to reproduce. Examples of intersexual selection can be seen in peacocks, where males display their colorful feathers to attract females, or in birds of paradise, known for their intricate courtship dances.