Wild Grizzly Bear Videos

Grizzly Bears in Nature

Largest Grizzly Bear Boar Pops Out »

Grizzly Bear Runs Towards Us »

Largest Grizzly Bear Boar in the Area Shows Himself »

Nope, No Grizzly Bears Here! »

I Am Not a Cub Anymore! »

Spring Grizzly Cubs Tire a Mum Out »

Grizzly Bear Boar Arrives for Salad and Marks His Territory »

Big Grizzly Girl Goes After Ground Squirrels »

Tiny Spring Grizzly Bear Twins Just Out of Hibernation »

Grizzly Bear Hugs During Pairing Season »

Tiny Spring Grizzly Cubs Feeling Out Their Surroundings »

Grizzly Mum Out with Triplet Spring Cubs »

Grizzly Bear Boar Approaching »

Here Comes a Very Big Grizzly Girl »

Big Grizzly Bear Boar on a Huge Bull Moose Carcass »

Grizzly Mum and Cubs Take a Dip in the River Out of Hibernation »

Big Grizzly Mum with Tiny Spring Triplets »

Gate of Biggest Beautiful Grizzly Bear Sow We Have Seen »

Grizzly Cubs Explore New Terrain out of Hibernation »

Grizzly Bears Starting to Forage Out of Hibernation Now »

Grizzly Mum with Spring Cubs to a Tricky Hibernation »

Here Comes Grizzly Mum and Her Tiny Spring Cubs »

Grizzly Mum Shows Defensive Behavior Because of More Grizzlies »

Huge Grizzly Bear Boar on a Big Bull Moose Carcass »

Big Grizzly Siblings Put on a Show by Cabins in the Canadian Rockies »

Grizzly Siblings Show off for their New Female Friend »

Biggest Grizzly Bear Boar in the Area Sneaks a Salad Before Anyone is Up »

Biggest Grizzly Bear Boar We have Seen in the Rockies »

Adorable Grizzly Bear Cubs of the Year with Mum »

Grizzly Bear Mum and Her Playful Spring Cubs »

First Sighting of Cautious Grizzly Mum and Spring Cubs »

Baby Grizzly Bear Cubs Honing Tree Climbing Skills »

Grizzly Siblings Showing their Grappling Skills »

This Tree Climbing thing is Easy! ..Spring Grizzly Bear Cubs »

Awesome Grizzly Bear Boar Approaching »

Baby Grizzly Bears Learning to Climb »

Beautiful Grizzly Bear Family Passing Through »

Beautiful Grizzly Bear Mum and Cubs »

Biggest Grizzly Bear Sow We have Seen so Far »

Biggest Grizzly Bear We have Seen in Nature So Far »

Big Grizzly Bears are Coming out of Hibernation Now »

Big Grizzly Cubs on their Own now, Cross Athabasca River »

Big Grizzly Pulls Meat off A Huge Moose Bull »

Cuddly Grizzly Bear Cub »

Cutest Playful Grizzly Bear Cubs »

Cutest Spring Grizzly Cubs Wrestling »

Grizzly Bear Boar Approaches on a Rainy Day »

Grizzly Bear Boar Travels 60km in 3 Days »

Grizzly Bear Mum Brings Her Tiny Spring Cubs to Town »

Grizzly Bear Not Phased by Canada's Busy Yellowhead Highway Drive Safe! »

Grizzly Bears having a short Fight »

Hazing Grizzly Mum and Cubs from a Campground »

Here Comes the Cutest Grizzly Bear Cubs! »

How Fast can a Grizzly Bear Eat Berries »

Huge Beautiful Grizzly Sow Here She Comes! »

Huge Grizzly Bear Mum and Cub Approaching »

Is a Winter Grizzly Bear More Dangerous »

Magnificent Grizzly Bear Mum and Cubs Pop Out at a Trailhead »

Magnificent Grizzly Mum and Big Cubs Mark Their Territory on Arrival »

Real Big Grizzly Bear Hugs »

Spirit Faced Grizzly Cubs of the Year with very Mature Mum »

The Cutest Baby Grizzly Bear Cubs in Nature! »

The Cutest Newborn Grizzly Bear Cubs »

This Big Grizzly Can Move! Trying to Catch Ground Squirrels »

Travelling Grizzly Bear Boar some called Sam »

Very Mature Grizzly Bear Mum and Her 3 Newborns »

You Never Know what Might Spook a Grizzly Mum with Cubs »

Adorable Care Free Spring Grizzly Bear Cubs »

Be Bear Aware on Trails Now Grizzly Bears are Out and About »

Biggest Grizzly Bear Boar Seen in Canada's Rockies »

Biggest Grizzly Mum Appears Much Lighter Now Supporting New Cubs »

Big Grizzly Bear Boar Looks Magnificent Out of Hibernation »

Big Grizzly Mum and Cubs Hunting for Protein »

Big Grizzly Mum Brings Her Spring Cubs out of Isolation »

Big Grizzly Mum Teaches Her Spring Cubs a Train in Canada's Rockies is No Big Deal »

Big Grizzly Mum Teaching Her Spring Cubs about Insects »

Cute Grizzly Spring Cubs Appear at the Lake »

Cutest Grizzly Bear Cubs of the Year »

Cutest Grizzly Cubs took on the World this Year »

Cutest Grizzly Grapplers Spring Grizzly Bear Cubs »

First Day Seeing Grizzly Mum and Spring Cubs out of Hibernation »

First Sighting of Grizzly Bear Mum and Her Playful Spring Cubs »

Grizzly Bear Closely Watches Hikers Pass By »

Grizzly Bear Cub Now Dealing with Life Alone »

Grizzly Bear Pair Passes Through a Main Trailhead »

Grizzly Bear Siblings Practicing Ground Skills in Front of a Cabin »

Grizzly Bears Wrestle on the Front Lawn »

Grizzly Bear Tensions Rise as Mating Season Begins »

Grizzly Cubs Always Make time for Play »

Grizzly Cubs Having Fun »

Grizzly Cub's World Just got a Little Tougher After Leaving Mum »

Grizzly Siblings First Spring Appearance after Hibernation »

Grizzly Spring Cubs Play as Mum Smells something She Does not Like »

Mum has had Enough and Leaves Her Spring Grizzly Cubs to Play »

One of the Largest Grizzly Bear Boars Now in Our Area »

Relocated Grizzly Family Just After a Porcupine Mix Up »

Spring Grizzly Bear Cubs Ready to Take on the World »

Grizzly Bears in Canada

Wild Grizzly Bears

Grizzly Bear - Brown Bear Species

Genetic science reveals the grizzly to be a subspecies of the brown bear (Ursus arctos). In North America, "brown bear" is also known as "grizzly bear", being all the same species, Ursus arctos.

Coastal grizzly bears are larger and darker than inland grizzlies. They were considered a different species from grizzlies at one time. Kodiak grizzly bears also were considered a distinct species. At that time there were five different species of brown bear, including these three in North America.

Grizzly Bear Size

Female grizzlies usually weigh 130–180 kg (290–400 lb), while adult male grizzly bears weigh on average 180–360 kg (400–790 lb). Female Grizzly Bear average weights would be 136 kg (300 lb) inland and 227 kg (500 lb) coastal. One study found that the average weight for an inland male grizzly bear was around 272 kilograms (600 pounds), and the average weight for a coastal male was around 408 kg (899 lb). Newborn grizzly bear cubs uausally weigh less than 500 grams (1.1 lb).

Grizzly Bear Fur Color

Although grizzlies color can be blond to nearly black, grizzly bear fur is usually brown with darker legs and commonly white or blond tipped fur on the flank and back.

Grizzly Bear Physical Characteristics

A large muscular hump exists on adult grizzly bear shoulders. Aside from the distinguishing hump, grizzly bears also have "dished in" face profiles with short, rounded ears.

Grizzly bear's rear end is lower than its shoulders, where as a black bear's rump is higher than its shoulders.

Grizzly bear's front claws are usually 2–4 inches in length, where as a black bear's claws measure about 1–2 inches in length.

Grizzly Bear Hibernation

Grizzly bears hibernate from 5 to 7 months each year unless they live in warm climates where they may not hibernate at all. During hibernation, female grizzly bears give birth and their offspring will consume milk from their mother for the remainder of the hibernation period.

Grizzly bears must consume an immense amount of food to prepare for hibernation. Bears can gain hundreds of pounds during the period just before hibernation called hyperphagia. In this period, grizzlies may consume up to 10 times the amount of calories compared to Spring and Summer.

Bears do not eat during hibernation. Grizzly bears do not defecate or urinate throughout the entire hibernation period. Male grizzly bears usually come out of hibernation in early to mid-March, while females emerge in April or early May.

Bears often wait for a snowstorm as a trigger to enter their den. This behavior reduces the chances that predators will find the den. Grizzly Bear dens are typically at elevations above 1,800 m (5,900 ft) on north-facing slopes.

Inland or Rocky Mountain grizzlies spend nearly half of their life in dens while coastal grizzly bears spend less time in dens. If food is very plentiful year round, grizzly bears may not hibernate at all.

Grizzly Bear Reproduction

Grizzly bears have one of the lowest reproductive rates of all land mammals in North America. Grizzly bears do not reach sexual maturity until they are at least five years old. After mating, females delay embryo implantation until hibernation, during which miscarriage can occur if the female is not in good enough condition. Female grizzly bears usually produce two cubs in a litter, with the mother caring for the cubs for up to two years before mating again.

Grizzlies are normally solitary animals, but in coastal areas, grizzlies gather around streams, lakes, rivers, and ponds during the salmon spawn. Females (sows) produce one to four cubs that are small and weigh only about 450 grams (1 lb) at birth. Unfortunately, most grizzly bear cubs do not make it through their first year due to many factors.

Grizzly Bear Lifespan

The average lifespan for a grizzly boar is estimated at 22 years, with sows living slightly longer at 26.

Females live longer than males due to their less dangerous life, as they do not fight during mating season like boars do. The oldest known wild inland grizzly was about 34 years old(Alaska), with the oldest known coastal bear being 39. Captive grizzlies have been known to live as long as 44 years.