American black bear vs brown bear

Ursus americanus compared with Ursus arctos

Key Differences

• American black bear is Least Concern while brown bear is Extinct.

Taxonomic Classification

Rank	American black bear	brown bear
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order same	Carnivora (食肉目)	Carnivora (食肉目)
Family same	Ursidae (Bears)	Ursidae (Bears)
Genus same	Ursus (Bears)	Ursus (Bears)
Species	Ursus americanus	Ursus arctos

Evolutionary Relationship

American black bear and brown bear share a common ancestor at the Genus level: Ursus. (Bears)

Conservation Status

American black bear

LC — Least Concern

brown bear

EX — Extinct

Population: ~200.0K

Trend: Stable →

Physical Characteristics

Attribute	American black bear	brown bear
Diet	—	Omnivore
Average Lifespan	—	25 years
Average Length	—	2.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

American black bear

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

brown bear

Habitat

Typically found in a wide range of habitat types.

Range

Found across Europe (6 countries).

American black bear

The American black bear (Ursus americanus) is a species in the genus Ursus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

brown bear

棕熊是世界上分布最广泛的熊类物种，从北美和欧洲横跨俄罗斯至日本，占据森林、冻原和高山草甸。阿拉斯加沿海种群的成年个体体重可达700公斤。棕熊是杂食性动物，以浆果、根茎、鱼类和腐肉为食，是跨景观分配养分的关键物种。大多数种群稳定，但部分亚种受到威胁。