Grande raie vs ours blanc

Dipturus laevis compared with Ursus maritimus

Key Differences

• Grande raie is Least Concern while ours blanc is Vulnerable.

Taxonomic Classification

Rank	Grande raie	ours blanc
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (mammifères)
Order	Rajiformes (Rajiformes)	Carnivora (carnivores)
Family	Rajidae	Ursidae (Bears)
Genus	Dipturus	Ursus (Bears)
Species	Dipturus laevis	Ursus maritimus

Evolutionary Relationship

Grande raie and ours blanc share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Grande raie

LC — Least Concern

ours blanc

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Grande raie

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.

Grande raie

The Barn-door skate (Dipturus laevis) is a species in the genus Dipturus. It is currently classified as Least Concern on the IUCN Red List.

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.