Alone and vulnerable sibling grizzly bears of the Knight Inlet area often stay together until they are three or four years old often fishing, eating and sleeping side-by-side, and even denning together. The average breeding age for female grizzlies is 4.5 years. Males reach sexual maturity at roughly the same age as the females. Sub-adult females tend to establish home ranges within or overlapping their mother’s home range. Sub-adult males are usually discouraged from staying in the same area by the larger males and must travel large distances to establish a home range. And even though these sub-adult males are capable of breeding at three or four years of age, they rarely have the opportunity to do so because of these older, bigger males.