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 (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Carnivora (Carnivorans)	Carnivora (Carnivorans)
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. (Carnivorans)

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

The world's most widely distributed bear species, brown bears range from North America and Europe across Russia to Japan, occupying forests, tundra, and alpine meadows. Adults can weigh up to 700 kg in coastal Alaskan populations. Omnivores that consume berries, roots, fish, and carrion, brown bears are a keystone species that distribute nutrients across landscapes. Most populations are stable, though some subspecies are threatened.

Tiger

The largest wild cat on Earth, tigers can exceed 300 kg and inhabit forests from the Russian Far East to Southeast Asia. Solitary ambush predators with distinctive orange and black striped coats that provide camouflage in dappled light. Critically endangered, with fewer than 4,000 remaining in the wild due to poaching and deforestation.