The grizzly bear (Ursus arctos horribilis) is also known as the North American brown bear. It is the third-largest bear belonging to the family Ursidae, which includes eight species of bears.

While omnivorous, North American brown bears can be nearly as large as polar bears, with paws the size of dinner plates that can down a bull moose with a single well-placed swipe. Horst Ossinger/dpa ...

Also known as the North American brown bear, the grizzly bear is a powerful predator that can weigh up to 800 pounds. (Photo: Paul Hamilton/Can Geo Photo Club) The ends of the hairs on grizzly bears’ ...

The brown bear is a large bear distributed across much of northern Eurasia and North America. Adult bears generally weigh between 100 and 635 kg (220 and 1,400 lb). Its largest subspecies ...

DESCRIPTION: A subspecies of brown bear, the grizzly bear is distinguished by its large ... The grizzly bear has one of the slowest reproductive rates of all North American mammals. LIFE CYCLE: ...

The muzzle, grizzled with brown, is long and narrow ... mi) ranges that females (24-50 sq. mi). North American densities vary from one black bear per 0.9 - 76 sq. mi. Costello, C. 1992. Black bear ...

Although the bears in ice age North America were the biggest and most powerful carnivores, they had some stiff competition. Twenty thousand years ago, lions roamed the entire planet. The American ...

Females only breed every three years — a very long reproductive period compared to most large mammals in North America. Thus, if female brown bears are removed from a population, that population is ...