牛背鷺〔西方黃頭鷺〕 vs Polar bear

Bubulcus ibis compared with Ursus maritimus

Key Differences

• 牛背鷺〔西方黃頭鷺〕 is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	牛背鷺〔西方黃頭鷺〕	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	Pelecaniformes (鹈形目)	Carnivora (食肉目)
Family	Ardeidae	Ursidae (Bears)
Genus	Bubulcus	Ursus (Bears)
Species	Bubulcus ibis	Ursus maritimus

Evolutionary Relationship

牛背鷺〔西方黃頭鷺〕 and Polar bear share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

牛背鷺〔西方黃頭鷺〕

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	牛背鷺〔西方黃頭鷺〕	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

牛背鷺〔西方黃頭鷺〕

Habitat

Found across multiple habitat types including deserts and xeric shrublands, tropical and subtropical moist broadleaf forests, and tropical and subtropical dry broadleaf forests, among 5 distinct biome types spanning the Palearctic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Egypt), Asia (Georgia, India), Europe (8 countries), North America (6 countries), and South America (7 countries).

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.

牛背鷺〔西方黃頭鷺〕

牛背鹭（Bubulcus ibis）在IUCN红色名录中被列为无危（LC）。分布广泛，种群数量稳定，无直接保护威胁。

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