brown bear vs Tiger

Ursus arctos compared with Panthera tigris

Key Differences

brown bear is Extinct while Tiger is Endangered.
brown bear is omnivore while Tiger is carnivore.
brown bear lives longer (25 years vs 20 years).

Taxonomic Classification

Rank	brown bear	Tiger
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order same	Carnivora (ネコ目)	Carnivora (ネコ目)
Family	Ursidae (Bears)	Felidae (Cats)
Genus	Ursus (Bears)	Panthera (Big Cats)
Species	Ursus arctos	Panthera tigris

Evolutionary Relationship

brown bear and Tiger share a common ancestor at the Order level: Carnivora. (ネコ目)

表示 Order: Carnivora

Conservation Status

brown bear

EX — Extinct

Population: ~200.0K

Trend: Stable →

Tiger

EN — Endangered

Population: ~4.5K

Trend: Increasing ↑

Physical Characteristics

Attribute	brown bear	Tiger
Diet	Omnivore	Carnivore
Average Lifespan	25 years	20 years
Average Length	2.0 m	3.0 m
Average Weight	300.0 kg	220.0 kg

Habitat & Geographic Range

brown bear

Habitat

Typically found in a wide range of habitat types.

Range

Found across Europe (6 countries).

Tiger

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia and Ecuador. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

brown bear

世界で最も広く分布するクマ科の種であるヒグマ（Ursus arctos）は、北アメリカとヨーロッパからロシアを経て日本まで、森林、ツンドラ、高山草原を占有します。成体はアラスカの沿岸個体群では最大700kgまで体重が増えることがあります。果物、根、魚、腐肉を食べる雑食動物で、ヒグマは景観全体に栄養素を分配するキーストーン種です。ほとんどの個体群は安定していますが、一部の亜種は脅威にさらされています。