baleine bleue vs Ours brun

Balaenoptera musculus compared with Ursus arctos

Key Differences

• baleine bleue is Vulnerable while Ours brun is Extinct.
• baleine bleue is carnivore while Ours brun is omnivore.
• baleine bleue is 500.0x heavier than Ours brun.
• baleine bleue lives longer (90 years vs 25 years).

Taxonomic Classification

Rank	baleine bleue	Ours brun
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order	Cetacea (Whales & Dolphins)	Carnivora (carnivores)
Family	Balaenopteridae (Rorquals)	Ursidae (Bears)
Genus	Balaenoptera (Rorquals)	Ursus (Bears)
Species	Balaenoptera musculus	Ursus arctos

Evolutionary Relationship

baleine bleue and Ours brun share a common ancestor at the Class level: Mammalia. (mammifères)

Conservation Status

baleine bleue

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Ours brun

EX — Extinct

Population: ~200.0K

Trend: Stable →

Physical Characteristics

Attribute	baleine bleue	Ours brun
Diet	Carnivore	Omnivore
Average Lifespan	90 years	25 years
Average Length	30.0 m	2.0 m
Average Weight	150.0 t	300.0 kg

Habitat & Geographic Range

baleine bleue

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 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Ours brun

Habitat

Typically found in a wide range of habitat types.

Range

Found across Europe (6 countries).

baleine bleue

The largest animal ever known to have lived on Earth, blue whales can reach 33 meters and 200 tonnes — their hearts alone weigh as much as a small car. Found in all oceans, they migrate between polar feeding grounds and tropical breeding areas. Filter feeders consuming up to 4 tonnes of krill daily. Endangered, with global populations estimated at 10,000–25,000 after near-extinction from 20th-century whaling.

Ours brun

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.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden