Polar bear vs Red-billed Leiothrix

Ursus maritimus compared with Leiothrix lutea

Key Differences

• Polar bear is Vulnerable while Red-billed Leiothrix is Least Concern.

Taxonomic Classification

Rank	Polar bear	Red-billed Leiothrix
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (mamalia)	Aves (burung)
Order	Carnivora (Carnivorans)	Passeriformes (burung pengicau)
Family	Ursidae (Bears)	Leiothrichidae
Genus	Ursus (Bears)	Leiothrix
Species	Ursus maritimus	Leiothrix lutea

Evolutionary Relationship

Polar bear and Red-billed Leiothrix share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Red-billed Leiothrix

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	Red-billed Leiothrix
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.

Red-billed Leiothrix

Habitat

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

Range

Widely distributed across Africa (Togo), Asia (Japan, Taiwan, United Arab Emirates), Europe (8 countries), and North America (United States).

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.

Red-billed Leiothrix

A striking babbler-like bird of South and Southeast Asian forests, red-billed leiothrixes have brilliant orange-red bills, olive-green upper parts, and vivid yellow-orange throat and breast with red and yellow wing patches. Native to the Himalayas and southern China, they have been introduced to Hawaii, Europe, and Japan from the cage bird trade. Highly social, living in noisy flocks of 6–30 birds in undergrowth and forest edge. Listed as Least Concern globally despite introduced range concerns.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway