ours blanc vs mulette épaisse

Ursus maritimus compared with Unio crassus

Key Differences

ours blanc is Vulnerable while mulette épaisse is Endangered.

Taxonomic Classification

Rank	ours blanc	mulette épaisse
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Chordata (Chordates)	Mollusca (mollusques)
Class	Mammalia (mammifères)	Bivalvia (Bivalvia)
Order	Carnivora (carnivores)	Unionida (Unionoida)
Family	Ursidae (Bears)	Unionidae
Genus	Ursus (Bears)	Unio
Species	Ursus maritimus	Unio crassus

Evolutionary Relationship

ours blanc and mulette épaisse share a common ancestor at the Kingdom level: Animalia. (animal)

Afficher Kingdom: Animalia

Conservation Status

ours blanc

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

mulette épaisse

EN — Endangered

Physical Characteristics

Attribute	ours blanc	mulette épaisse
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

ours blanc

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

mulette épaisse

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

ours blanc

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.