Polar bear vs White-headed Duck

Ursus maritimus compared with Oxyura leucocephala

Key Differences

Polar bear is Vulnerable while White-headed Duck is Not Evaluated.

Taxonomic Classification

Rank	Polar bear	White-headed Duck
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class	Mammalia (ثدييات)	Aves (طيور)
Order	Carnivora (لواحم)	Anseriformes (إوزيات)
Family	Ursidae (Bears)	Anatidae
Genus	Ursus (Bears)	Oxyura
Species	Ursus maritimus	Oxyura leucocephala

Evolutionary Relationship

Polar bear and White-headed Duck share a common ancestor at the Phylum level: Chordata. (حبليات)

استعراض Phylum: Chordata

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

White-headed Duck

NE — Not Evaluated

Physical Characteristics

Attribute	Polar bear	White-headed Duck
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.

White-headed Duck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (9 countries).

Polar bear

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.

White-headed Duck

White-headed Duck (Oxyura leucocephala) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.