Brown bear

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. 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

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. 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
species	U. a. ssp

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. 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. nelsoni

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. 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. crowtheri