黑脚毛腿蜂鸟 vs Polar bear

Eriocnemis derbyi compared with Ursus maritimus

Key Differences

• 黑脚毛腿蜂鸟 is Near Threatened while Polar bear is Vulnerable.

Taxonomic Classification

Rank	黑脚毛腿蜂鸟	Polar bear
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Aves (鳥綱)	Mammalia (哺乳動物)
Order	Apodiformes (雨燕目)	Carnivora (食肉目)
Family	Trochilidae	Ursidae (Bears)
Genus	Eriocnemis	Ursus (Bears)
Species	Eriocnemis derbyi	Ursus maritimus

Evolutionary Relationship

黑脚毛腿蜂鸟 and Polar bear share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

黑脚毛腿蜂鸟

NT — Near Threatened

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	黑脚毛腿蜂鸟	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

黑脚毛腿蜂鸟

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

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

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.

黑脚毛腿蜂鸟

黑腿绒腿蜂鸟（Eriocnemis derbyi）因雄鸟独特的黑色大腿与白色腿部羽毛簇形成强烈对比而得名，栖息于厄瓜多尔和哥伦比亚海拔1,500至3,500米的湿润山地森林和林缘。雄鸟展示翠绿色羽毛和蓝紫色尾羽。由于安第斯云雾林遭农业开垦，种群数量下降，被列为近危（NT）物种。

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。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway