褐紫耳蜂鳥 vs Polar bear

Colibri delphinae compared with Ursus maritimus

Key Differences

• 褐紫耳蜂鳥 is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	褐紫耳蜂鳥	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	Colibri	Ursus (Bears)
Species	Colibri delphinae	Ursus maritimus

Evolutionary Relationship

褐紫耳蜂鳥 and Polar bear share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

褐紫耳蜂鳥

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	褐紫耳蜂鳥	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

褐紫耳蜂鳥

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

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.

褐紫耳蜂鳥

棕紫耳蜂鸟是紫耳蜂鸟属中唯一以棕色为主的物种，上体呈褐铜色，具有诊断性的蓝紫色耳斑。分布于危地马拉至委内瑞拉、哥伦比亚和巴西，南至玻利维亚的湿润森林及林缘。栖息于低地至海拔2000米的森林内部、林缘及花园。尽管羽色对蜂鸟而言相对朴素，但紫色耳斑在直射阳光下会熠熠闪光。

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