The earliest age at which persons are capable of begetting or bearing children, usually considered, in temperate climates, to be about fourteen years in males and twelve in females.
A sequence of events by which a child becomes an adult. Characterized by the secretion of gonadal hormones and the development of secondary sexual characteristics (e.g., facial hair in males and breasts in females).
The time period when a child begins physically maturing into an adult. Onset is usually in the early teens and is accompanied by a large increase in the production of hormones.