Sexual selection is a process that has been widely studied and observed in the natural world. It refers to the selection of certain traits in a mate, often based on physical or behavioral characteristics, that increase the likelihood of reproductive success. Synonyms for sexual selection include mate choice, courtship selection, and intersexual selection. These terms all describe the way in which individuals within a species choose their partners based on specific traits, often leading to the development of exaggerated physical or behavioral features over time. Sexual selection is a critical aspect of biological diversity and can help explain the variations we see in different species.