Polar bear vs 辉紫耳蜂鸟

Ursus maritimus compared with Colibri coruscans

Key Differences

• Polar bear is Vulnerable while 辉紫耳蜂鸟 is Least Concern.

Taxonomic Classification

Rank	Polar bear	辉紫耳蜂鸟
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)	Colibri
Species	Ursus maritimus	Colibri coruscans

Evolutionary Relationship

Polar bear and 辉紫耳蜂鸟 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 ↓

辉紫耳蜂鸟

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	辉紫耳蜂鸟
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.

辉紫耳蜂鸟

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。

辉紫耳蜂鸟

一种栖息于安第斯山脉和委内瑞拉高地特普伊山的大型华丽蜂鸟，拥有闪耀的蓝绿色羽毛和在阳光下强烈闪光的虹彩紫蓝色耳斑和颏部，名副其实。分布于委内瑞拉、哥伦比亚、厄瓜多尔和秘鲁海拔1,200至3,000米的山地森林和灌木丛。是最常见的安第斯蜂鸟之一，在花卉群落中具有高度的攻击性和鸣声领地防御行为。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway