Polar bear vs Spotless cat shark

Ursus maritimus compared with Bythaelurus immaculatus

Key Differences

• Polar bear is Vulnerable while Spotless cat shark is Least Concern.

Taxonomic Classification

Rank	Polar bear	Spotless cat shark
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)	Bythaelurus
Species	Ursus maritimus	Bythaelurus immaculatus

Evolutionary Relationship

Polar bear and Spotless cat shark share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Spotless cat shark

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	Spotless cat shark
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.

Spotless cat shark

Habitat

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

Polar bear

O maior carnivoro terrestre da Terra, o urso-polar pode ultrapassar 700 kg e e encontrado pelo gelo marinho artico, do Canada ate a Russia. Mamiferos marinhos altamente especializados que dependem do gelo marinho para cacas de focas e focas-barbadas. Excelentes nadadores capazes de percorrer grandes distancias em aguas abertas. Classificado como Vulneravel, com populacoes sob severa pressao devido a rapida perda de gelo marinho artico causada pelas mudancas climaticas.