Polar bear vs Sharpfin houndshark

Ursus maritimus compared with Triakis acutipinna

Key Differences

• Polar bear is Vulnerable while Sharpfin houndshark is Endangered.

Taxonomic Classification

Rank	Polar bear	Sharpfin houndshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Carnivora (Carnivorans)	Carcharhiniformes (Ground Sharks)
Family	Ursidae (Bears)	Triakidae
Genus	Ursus (Bears)	Triakis
Species	Ursus maritimus	Triakis acutipinna

Evolutionary Relationship

Polar bear and Sharpfin houndshark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Sharpfin houndshark

EN — Endangered

Physical Characteristics

Attribute	Polar bear	Sharpfin houndshark
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

Polar bear

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.

Sharpfin houndshark

Habitat

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

Polar bear

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.