Polar bear vs 白尾尖镰嘴蜂鸟

Ursus maritimus compared with Eutoxeres aquila

Key Differences

• Polar bear is Vulnerable while 白尾尖镰嘴蜂鸟 is Least Concern.

Taxonomic Classification

Rank	Polar bear	白尾尖镰嘴蜂鸟
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	Mammalia (哺乳動物)	Aves (鳥綱)
Order	Carnivora (食肉目)	Apodiformes (雨燕目)
Family	Ursidae (Bears)	Trochilidae
Genus	Ursus (Bears)	Eutoxeres
Species	Ursus maritimus	Eutoxeres aquila

Evolutionary Relationship

Polar bear and 白尾尖镰嘴蜂鸟 share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

白尾尖镰嘴蜂鸟

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	白尾尖镰嘴蜂鸟
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.

白尾尖镰嘴蜂鸟

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

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。

白尾尖镰嘴蜂鸟

白尖镰嘴蜂鸟是中美洲和南美洲西北部潮湿森林中的大型隐士蜂鸟，具有戏剧性弯曲的镰刀形喙，精确适应于从螺旋鸟蕉植物强弯花朵中采蜜，是植物与传粉者协同进化的经典案例。它们在茂密潮湿的森林中沿固定路线系统地穿梭，每天造访相同的花丛。雌雄均具镰形喙，在林下灌木丛中发出持续而反复的鸣叫声。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway