Chien de mer gris et roux vs ours blanc

Mustelus canis compared with Ursus maritimus

Key Differences

• Chien de mer gris et roux is Near Threatened while ours blanc is Vulnerable.

Taxonomic Classification

Rank	Chien de mer gris et roux	ours blanc
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (mammifères)
Order	Carcharhiniformes (Ground Sharks)	Carnivora (carnivores)
Family	Triakidae	Ursidae (Bears)
Genus	Mustelus	Ursus (Bears)
Species	Mustelus canis	Ursus maritimus

Evolutionary Relationship

Chien de mer gris et roux and ours blanc share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Chien de mer gris et roux

NT — Near Threatened

ours blanc

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Chien de mer gris et roux	ours blanc
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Chien de mer gris et roux

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Found in Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Chien de mer gris et roux

The Atlantic Smooth Dogfish (Mustelus canis) is a species in the genus Mustelus. It is currently classified as Near Threatened on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.