Brown bear

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phylum Chordata The brown bear (Ursus arctos) is a large bear with the widest distribution of any living ursid. The species is distributed across much of northern Eurasia and North America. It is one of the two largest terrestrial carnivorans alive today, rivaled in body size only by its close cousin, the polar bear (Ursus maritimus). There are several recognized subspecies, many of which are quite well-known within their native ranges, found in the brown bear species.

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class Mammalia
infraclass Eutheria
order Carnivora
suborder Caniformia
family Ursidae
genus Ursus
species U. arctos

Brown bear

Grizzly bear

phylum Chordata The grizzly bear (Ursus arctos ssp.), is any North American subspecies of the brown bear, such as the mainland grizzly (U. a. horribilis), the Kodiak (U. a. middendorffi), the peninsular grizzly (U. a. gyas) and the recently extinct California grizzly (U. a. californicus). Specialists sometimes call the grizzly the North American brown bear because the grizzly and the brown bear are one species on two continents.

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class Mammalia
infraclass Eutheria
order Carnivora
suborder Caniformia
family Ursidae
genus Ursus
species U. arctos
species U. a. ssp

Mexican grizzly bear

phylum Chordata The Mexican grizzly bear (Ursus arctos nelsoni) is a presumed extinct subspecies of the Brown bear. It is named after American naturalist Edward William Nelson who secured a series for the U. S. Biological Survey. The holotype was shot by H. A. Cluff at Colonia Garcia, Chihuahua in 1899.

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class Mammalia
infraclass Eutheria
order Carnivora
suborder Caniformia
family Ursidae
genus Ursus
species U. arctos
subspecies U. a. nelsoni

Atlas bear

phylum Chordata The Atlas bear was Africa's only native bear that survived into modern times. Once inhabiting the Atlas Mountains and neighbouring areas, from Morocco to Libya, the animal is now thought to be extinct. The Atlas bear was brownish black in colour, and lacked a white mark on the muzzle. The fur on the underparts was reddish orange.

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class Mammalia
infraclass Eutheria
order Carnivora
suborder Caniformia
family Ursidae
genus Ursus
species U. arctos
subspecies U. a. crowtheri

Ussuri brown bear

phylum Chordata The Ussuri brown bear (Ursus arctos lasiotus), also known as the Ezo brown bear, Russian brown bear, or the black grizzly bear, is a subspecies of the brown bear or a population of the Eurasian brown bear (U. a. arctos). One of the largest brown bears, a very large Ussuri brown bear may approach the Kodiak bear in size.

It is very similar to the Kamchatka brown bear, though it has a more-elongated skull, a less-elevated forehead, somewhat-longer nasal bones and less-separated zygomatic arches, and is somewhat darker in color, with some individuals being completely black, which once led to the now-refuted speculation that black individuals were hybrids of brown bears and Asian black bears.

For more information, visit the Wikipedia entry.

Get back to Bears

class Mammalia
infraclass Eutheria
order Carnivora
suborder Caniformia
family Ursidae
genus Ursus
species U. arctos
subspecies U. a. lasiotus