Polar bear vs Siberian weasel

Ursus maritimus compared with Mustela sibirica

Key Differences

• Polar bear is Vulnerable while Siberian weasel is Least Concern.

Taxonomic Classification

Rank	Polar bear	Siberian weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Mammalia (mamíferos)	Mammalia (mamíferos)
Order same	Carnivora (carnívoros)	Carnivora (carnívoros)
Family	Ursidae (Bears)	Mustelidae (Weasels & Otters)
Genus	Ursus (Bears)	Mustela
Species	Ursus maritimus	Mustela sibirica

Evolutionary Relationship

Polar bear and Siberian weasel share a common ancestor at the Order level: Carnivora. (carnívoros)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Siberian weasel

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	Siberian weasel
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.

Siberian weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Japan and Russia.

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.