Polar bear vs

Ursus maritimus compared with Usnea cornuta

Key Differences

• Polar bear is Vulnerable while is Near Threatened.

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (动物界)	Fungi (真菌界)
Phylum	Chordata (脊索动物门)	Ascomycota (子囊菌门)
Class	Mammalia (哺乳動物)	Lecanoromycetes (茶漬綱)
Order	Carnivora (食肉目)	Lecanorales (茶漬目)
Family	Ursidae (Bears)	Parmeliaceae
Genus	Ursus (Bears)	Usnea
Species	Ursus maritimus	Usnea cornuta

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

NT — Near Threatened

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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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。

Usnea cornuta是Parmeliaceae科的枝状地衣，被评为近危(NT)。形成悬垂于树枝和小枝上的灌木状叶状体，通常生于湿润的森林环境。与所有松萝属物种一样，对大气污染特别是二氧化硫极为敏感，是空气质量的有用生物指示物种。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway