Oso Polar vs Rusty Catshark

Ursus maritimus compared with Halaelurus sellus

Key Differences

Oso Polar is Vulnerable while Rusty Catshark is Least Concern.

Taxonomic Classification

Rank	Oso Polar	Rusty Catshark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Chondrichthyes (Cartilaginous Fish)
Order	Carnivora (carnívoros)	Carcharhiniformes (Ground Sharks)
Family	Ursidae (Bears)	Scyliorhinidae
Genus	Ursus (Bears)	Halaelurus
Species	Ursus maritimus	Halaelurus sellus

Evolutionary Relationship

Oso Polar and Rusty Catshark share a common ancestor at the Phylum level: Chordata. (cordados)

Vista Phylum: Chordata

Conservation Status

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Rusty Catshark

LC — Least Concern

Physical Characteristics

Attribute	Oso Polar	Rusty Catshark
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

Oso Polar

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.

Rusty Catshark

Habitat

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

Oso Polar

El mayor carnivoro terrestre de la Tierra, el oso polar puede superar los 700 kg y se encuentra en el hielo marino del Artico, desde Canada hasta Rusia. Es un mamifero marino altamente especializado que depende del hielo marino para cazar focas anilladas y barbadas. Excelente nadador capaz de cubrir grandes distancias en agua abierta. Clasificado como Vulnerable, sus poblaciones soportan una presion severa por la rapida perdida de hielo marino artico debida al cambio climatico.