Grizzly bears are generally most active in the early morning and late afternoon hours. Trevor, Nigel & guide Tom head out on boats to view diurnal foraging behaviour of the brown bear.
Grizzly bears are normally solitary animals. However, they are not very territorial and they may be seen feeding together where food is abundant.
Females will rear their cubs for 2-3 years. When a female grizzly bear leaves her mother, they often set up their home range quite close to their mother’s home range. Males will typically range further, but may also remain close by.
Grizzly’s reach sexual maturity between 4 and 5 years and are considered fully grown by 8 to 10 years of age. Considered one of the slowest reproducing land mammals.
Grizzly bears mate between May and July, but the female’s body delays implantation of their eggs in the uterus until October or November. If the female has not gained enough fat over the summer to survive and raise cubs, implantation may not occur. A grizzly’s ability to garner enough quality calories through the summer is not just crucial for her survival, but also for her reproductive ability.
British Columbia is home to one quarter of the entire North American population of grizzly bears – approximately 15,000 bears.