vs Polar bear

Bilamarchaeum dharawalense compared with Ursus maritimus

Key Differences

• is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Archaea (Archaea)	Animalia (动物界)
Phylum	Micrarchaeota (Micrarchaeota)	Chordata (脊索动物门)
Class	Micrarchaeia	Mammalia (哺乳動物)
Order	Anstonellales (Anstonellales)	Carnivora (食肉目)
Family	Bilamarchaeaceae	Ursidae (Bears)
Genus	Bilamarchaeum	Ursus (Bears)
Species	Bilamarchaeum dharawalense	Ursus maritimus

Conservation Status

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute		Polar bear
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.

Bilamarchaeum dharawalense是近期描述的一种古菌，代表阿斯加德古菌群中的一个深度分支谱系，分离自澳大利亚悉尼附近的沿岸沉积物。其名称是为了纪念发现地的传统守护者达拉瓦尔人。作为阿斯加德古菌，它在理解真核细胞进化起源方面具有重要的系统发育意义。

Polar bear

北极熊是地球上最大的陆地食肉动物，体重可超过700千克，分布于从加拿大到俄罗斯的北极海冰区。是高度特化的海洋哺乳动物，依赖海冰捕猎环斑海豹和髯海豹。是优秀的游泳者，能够横渡广阔的开阔水域。被列为易危种，因气候变化导致北极海冰迅速减少，种群正受到严重威胁。