黑白食籽雀 vs Polar bear

Sporophila luctuosa compared with Ursus maritimus

Key Differences

• 黑白食籽雀 is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	黑白食籽雀	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	Passeriformes (雀形目)	Carnivora (食肉目)
Family	Thraupidae	Ursidae (Bears)
Genus	Sporophila	Ursus (Bears)
Species	Sporophila luctuosa	Ursus maritimus

Evolutionary Relationship

黑白食籽雀 and Polar bear share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

黑白食籽雀

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	黑白食籽雀	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

黑白食籽雀

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.

黑白食籽雀

黑白食籽雀（Sporophila luctuosa）是一种小型、花纹鲜明的食籽雀，雄鸟具有醒目的黑白羽色——纯黑的上体和翅膀与白色的下体形成强烈对比——栖息于从哥伦比亚至玻利维亚安第斯山脉的草地、林缘和种植园遮阴处等开放和半开放生境。是花纹最鲜明的Sporophila食籽雀之一。雌鸟为朴素的棕色和黄褐色。以草籽为食，雄鸟因其花纹和鸣声有时被作为笼鸟饲养。

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