Polar bear vs 紫旋蜜雀

Ursus maritimus compared with Cyanerpes caeruleus

Key Differences

• Polar bear is Vulnerable while 紫旋蜜雀 is Least Concern.

Taxonomic Classification

Rank	Polar bear	紫旋蜜雀
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)	Passeriformes (雀形目)
Family	Ursidae (Bears)	Thraupidae
Genus	Ursus (Bears)	Cyanerpes
Species	Ursus maritimus	Cyanerpes caeruleus

Evolutionary Relationship

Polar bear and 紫旋蜜雀 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 ↓

紫旋蜜雀

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	紫旋蜜雀
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.

紫旋蜜雀

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。

紫旋蜜雀

紫蜜鸟（Cyanerpes caeruleus）是与裂舌雀亚科近缘的小型绚丽蜜鸟，雄鸟羽毛呈深紫色，翅膀黑色，腿部有鲜黄色斑块，雌鸟则为深绿色带黄色条纹。分布于哥伦比亚、委内瑞拉至玻利维亚、巴西的湿润热带雨林林冠，用长而弯曲的喙吸食花蜜，也取食浆果和小型昆虫。是热带林冠花卉的重要传粉者。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway