Gametes are special cells involved in reproduction. They are produced by organisms to combine genetic material and create new life. In humans and many animals, there are two types of gametes: sperm and eggs. Sperm are the male gametes, while eggs are the female gametes. Each gamete carries half the genetic information needed to form a new individual. When a sperm fertilizes an egg, they combine their genetic material to form a zygote, which eventually develops into a new organism. This process is essential for sexual reproduction and contributes to genetic diversity, which is important for the survival of species like humans and plants.