vs Polar bear

Alcanivorax pacificus compared with Ursus maritimus

Key Differences

• is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Bacteria (Bacteria)	Animalia (动物界)
Phylum	Proteobacteria (變形菌門)	Chordata (脊索动物门)
Class	Gammaproteobacteria (γ-变形菌纲)	Mammalia (哺乳動物)
Order	Pseudomonadales (假单胞菌目)	Carnivora (食肉目)
Family	Alcanivoracaceae	Ursidae (Bears)
Genus	Alcanivorax	Ursus (Bears)
Species	Alcanivorax pacificus	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

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

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.

太平洋食烷菌（Alcanivorax pacificus）是从太平洋海水中分离的一种海洋革兰氏阴性细菌，具有降解石油烃类化合物的能力。该物种以烷烃为主要碳源，在海洋石油污染的自然生物降解过程中发挥重要作用。食烷菌属在石油泄漏后的海洋环境中往往会大量繁殖，是天然生物修复的关键参与者。

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。