Polar bear vs Tube dwelling amphipod

Ursus maritimus compared with Jassa marmorata

Key Differences

Polar bear is Vulnerable while Tube dwelling amphipod is Not Evaluated.

Taxonomic Classification

Rank	Polar bear	Tube dwelling amphipod
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Arthropoda (artrópode)
Class	Mammalia (mamíferos)	Malacostraca (Crustaceans)
Order	Carnivora (carnívoros)	Amphipoda (Anfípoda)
Family	Ursidae (Bears)	Ischyroceridae
Genus	Ursus (Bears)	Jassa
Species	Ursus maritimus	Jassa marmorata

Evolutionary Relationship

Polar bear and Tube dwelling amphipod share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Tube dwelling amphipod

NE — Not Evaluated

Physical Characteristics

Attribute	Polar bear	Tube dwelling amphipod
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.

Tube dwelling amphipod

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Widely distributed across Africa (South Africa), Europe (6 countries), North America (United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina, Chile, Uruguay).

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.