Polar bear vs 黃腹食籽雀

Ursus maritimus compared with Sporophila nigricollis

Key Differences

• Polar bear is Vulnerable while 黃腹食籽雀 is Least Concern.

Taxonomic Classification

Rank	Polar bear	黃腹食籽雀
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)	Sporophila
Species	Ursus maritimus	Sporophila nigricollis

Evolutionary Relationship

Polar bear and 黃腹食籽雀 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 ↓

黃腹食籽雀

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	黃腹食籽雀
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.

黃腹食籽雀

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。

黃腹食籽雀

黄腹食种雀是腹部黄色、雄鸟具有明显黑色颔斑的小型特色食种雀，栖息于从哥斯达黎加至阿根廷的南美洲杂草地、林缘和草原。雄鸟具有黑色上体和与黄腹对比鲜明的栗色胁部。在草种和农业杂草上形成大群。因雄鸟魅力羽毛和悦耳鸣声在南美洲作为笼养鸟颇受欢迎。以广泛且稳定的种群被列为无危。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway