There comes a time in the life of every organism on the face of this planet where they reproduce and bring forth new life. This is essential for the continual survival of that organism. For reproduction to take place, changes take place in the body of the organism, to prepare it to take on this role of procreation. These changes make the body mature and able to take on this daunting task. These changes are evidenced by the release of hormones (chemicals produced by the body to help the body in many of its life processes), the maturing of certain body parts, and certain behaviours that will be exhibited by the organism to show that it is ready to reproduce.