The brown bear (Ursus arctos) is native to parts of northern Eurasia and North America. There are many subspecies within the brown bear species, including the Atlas bear and the Himalayan brown bear.

The following are subspecies of bears:

• Arctos
• Collarus
• Horribilis
• Nelsoni (extinct)

The following countries have the largest populations
of brown bears:

1. Russia
2. United States
3. Canada