Sex

Sex is a biological process through which organisms reproduce, involving the combination of genetic material from two parents. In humans and many other species, sexual reproduction typically involves the fusion of male and female gametes (sperm and egg) to form a zygote. This process can also encompass a range of behaviors and social interactions, including courtship and mating rituals. In addition to reproduction, sexual activity can serve various functions, such as strengthening pair bonds and enhancing social cohesion. The study of sex encompasses multiple disciplines, including biology, psychology, and sociology.
For more information, visit the Wikipedia entry on Sex.