Sperm are the tiny cells produced by male animals, including humans, that play a crucial role in reproduction. Each sperm cell carries genetic information from the male parent and is designed to travel to meet an egg cell from a female. This meeting can lead to the creation of a new life, making sperm essential for the continuation of many species. In humans, sperm are produced in the testes and are released during ejaculation. They are usually motile, meaning they can swim, which helps them navigate through the female reproductive system to reach the egg. Understanding sperm is important for studying fertility and reproductive health.