Holbiche à joues noires vs ours blanc

Parmaturus melanobranchus compared with Ursus maritimus

Key Differences

• Holbiche à joues noires is Least Concern while ours blanc is Vulnerable.

Taxonomic Classification

Rank	Holbiche à joues noires	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	Scyliorhinidae	Ursidae (Bears)
Genus	Parmaturus	Ursus (Bears)
Species	Parmaturus melanobranchus	Ursus maritimus

Evolutionary Relationship

Holbiche à joues noires and ours blanc share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Holbiche à joues noires

LC — Least Concern

ours blanc

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Holbiche à joues noires	ours blanc
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Holbiche à joues noires

Habitat

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

Range

Found in Taiwan.

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.

Holbiche à joues noires

The Blackgill cat shark (Parmaturus melanobranchus) is a species in the genus Parmaturus. It is currently classified as Least Concern 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.