Grizzly bear pictures

 
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Grizzly Bear Photos Showing This North American Brown Bear

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Grizzly bears, Ursus arctos, Ursus arctos horribilis, can move fast for their size, up to 30 miles an hour, and can be dangerous to people, especially if surprised or if people come between a mother and her cubs. They normally avoid all contact with people, and do not view humans as prey. However they are among the most aggressive of bears as they are too large to climb trees, so their danger response is to stand their ground and fight an aggressor. Mothers defending cubs account for more than 70% of all known grizzly bear on human attacks.

Grizzly bears mate from early May to July, and although gestation is only around 70 days, gestation is suspended, and the fertilized egg does not implant itself in the uterus until the female has put on enough body fat to den for the winter. The dens are typically at a higher elevation, and dug under rocks, in a hollow tree, or in crevices and caves. The females give birth in the den in January or February, with a litter size of one to three, although two is typical. The cubs weigh about one pound at birth, and the mother will stay in the den to nurse them until they are around 20 pounds and the family emerges from the den in April or May. The cubs remain with the mother for at least two years. Left alone by man, they live to around 20 to 25 years old.

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Picture of a grizzly bear, Ursus arctos, Ursus arctos horribilis, cub along east coast of Katmai National Park on the Alaskan peninsula

Picture #: 021581

Image of a grizzly bear, Ursus arctos, Ursus arctos horribilis, cubs along east coast of Katmai National Park on the Alaskan peninsula

Picture #: 021586

Stock photo of a grizzly bear, Ursus arctos, Ursus arctos horribilis, along east coast of Katmai National Park on the Alaskan peninsula

Picture #: 021548

Picture of a grizzly bear, Ursus arctos, Ursus arctos horribilis, cubs in tall grasses along east coast of Katmai National Park on the Alaskan peninsula

Picture #: 021588

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Picture of a grizzly bear, Ursus arctos, Ursus arctos horribilis, rare blonde ( white ) bear playing with a dark colored bear on the coast of Katmai National Park, Alaskan peninsula

Picture #: 021595

Image of a grizzly bear, Ursus arctos, Ursus arctos horribilis, sow with cubs along east coast of Katmai National Park on the Alaskan peninsula

Picture #: 021606

Stock photo of a grizzly bear, Ursus arctos, Ursus arctos horribilis, resting along east coast of Katmai National Park on the Alaskan peninsula

Picture #: 021609

Picture of a grizzly bear, Ursus arctos, Ursus arctos horribilis, cub scavenging on whale carcass, 1002 coastal plain of the Arctic National Refuge, Alaska

Picture #: 022026

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Picture of a grizzly bear, Ursus arctos, Ursus arctos horribilis, scavenging at the dump, Prudhoe Bay, Alaska

Picture #: 025374

Image of a grizzly bear, Ursus arctos, Ursus arctos horribilis, crosses a road in front of a car. Dozens of animals including bears are killed each year in Yellowstone as they attempt to cross the roads in front of drivers who are not paying attention or speeding

Picture #: 044854

Stock photo of a grizzly bear, Ursus arctos, Ursus arctos horribilis, taking a break from fishing for pink salmon, Katmai National Park, Alaska

Picture #: 053396

Picture of a grizzly bear, Ursus arctos, Ursus arctos horribilis, ow fishing for pink salmon, note the tracking collar, east coast of Katmai National Park, Alaska

Picture #: 053445

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Picture of a grizzly bear, Ursus arctos, Ursus arctos horribilis, close up, east coast of Katmai National Park, Alaska

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Image of a grizzly bear, Ursus arctos, Ursus arctos horribilis, standing subadult, east coast of Katmai National Park, Alaska

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Stock photo of a grizzly bear, Ursus arctos, Ursus arctos horribilis, catching salmon in mouth, Katmai National Park, Alaska

Picture #: 079472

Picture of a grizzly bear, Ursus arctos, Ursus arctos horribilis, sow with cubs looking for fish, Katmai National Park on the Alaskan Penninsula, Alaska

Picture #: 090957

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Picture of a grizzly bear, Ursus arctos, Ursus arctos horribilis, taking a nap in the afternoon sun, Katmai National Park on the Alaskan Penninsula, Alaska

Picture #: 090977

Image of a grizzly bear, Ursus arctos, Ursus arctos horribilis, in pick-up truck, 1002 area of Arctic National Wildlife Refuge, North Slope, Alaska

Picture #: 091001

Stock photo of a grizzly bear, Ursus arctos, Ursus arctos horribilis, Khutzeymateen Grizzly Bear Sanctuary, British Columbia

Picture #: 097941

Picture of a grizzly bear, Ursus arctos, Ursus arctos horribilis, three spring cubs standing next to eachother, Katmai National Park on the Alaskan Penninsula

Picture #: 091152

 

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