Now, young dolphins learn a lot as they're growing up, and they use their teenage years to practice social skills, and at about the age of nine, the females become sexually mature, so they can get pregnant, and the males mature quite a bit later, at around 15 years of age.
Unge delfiner lærer meget når de vokser op, og de bruger deres teenageår til  at øve deres sociale færdigheder, og i en alder af cirka ni, bliver hunnerne seksuelt aktive, så de kan blive gravide, og hannerne bliver modne lidt senere, omkring 15 års alderen.