By: Foster Pace and Hayley Smith
Both the male and female killer whales mature around the age of 15 although males usually start reproducing around the ages of 19 – 21. After reaching sexual maturity and becoming impregnated the female killer whale will usually produce a single offspring once every 3 – 5 years until they reach the age of 40 or are no longer able to reproduce. When it comes to giving birth the average period between fertilization and birth for a female killer whale often lasts between 15 – 18 months. During delivery the child is often born tail first in order to minimize its chances of drowning, however there are cases of killer whales being born head first.