vs Polar bear

Lepocinclis marssonii compared with Ursus maritimus

Key Differences

• is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Protozoa (原生動物)	Animalia (动物界)
Phylum	Euglenozoa (裸藻门)	Chordata (脊索动物门)
Class	Euglenoidea (裸藻纲)	Mammalia (哺乳動物)
Order	Euglenida (裸藻目)	Carnivora (食肉目)
Family	Phacidae	Ursidae (Bears)
Genus	Lepocinclis	Ursus (Bears)
Species	Lepocinclis marssonii	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 and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Sweden, and 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.

Lepocinclis marssonii是Phacaceae科的单细胞光合裸藻类鞭毛虫，以具有碳储存化合物副淀粉颗粒的坚硬纺锤形至椭圆形细胞体为特征。生活在富营养至中营养的淡水池塘、沟渠和沼泽中，参与浮游植物群落的构成。与同属的裸藻不同，Lepocinclis细胞具有不能进行变形运动的坚硬表膜。

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。