大西洋鹱 vs Polar bear

Puffinus puffinus compared with Ursus maritimus

Key Differences

• 大西洋鹱 is Least Concern while Polar bear is Vulnerable.
• Polar bear is 1000.0x heavier than 大西洋鹱.
• 大西洋鹱 lives longer (50 years vs 25 years).

Taxonomic Classification

Rank	大西洋鹱	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	Procellariiformes (鹱形目)	Carnivora (食肉目)
Family	Procellariidae	Ursidae (Bears)
Genus	Puffinus	Ursus (Bears)
Species	Puffinus puffinus	Ursus maritimus

Evolutionary Relationship

大西洋鹱 and Polar bear share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

大西洋鹱

LC — Least Concern

Trend: Stable →

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	大西洋鹱	Polar bear
Diet	Carnivore	Carnivore
Average Lifespan	50 years	25 years
Average Length	35 cm	2.4 m
Average Weight	450 g	450.0 kg

Habitat & Geographic Range

大西洋鹱

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (5 countries) and South America (Colombia, Ecuador).

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.

大西洋鹱

曼克斯鹱是北大西洋和北太平洋的中型海鸟，以卓越的导航能力而闻名。它们在一生中迁徙距离可达100万公里，每年往返于北大西洋岛屿繁殖地和南美洲越冬地之间。贴近海浪表面的硬翅剪水飞行是其典型特征。有一只个体存活超过55年，是有记录的寿命最长的野生鸟类之一。

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