Polar bear vs Purple-backed Thornbill

Ursus maritimus compared with Ramphomicron microrhynchum

Key Differences

• Polar bear is Vulnerable while Purple-backed Thornbill is Least Concern.

Taxonomic Classification

Rank	Polar bear	Purple-backed Thornbill
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Mammalia (lớp Thú)	Aves (chim)
Order	Carnivora (bộ Ăn thịt)	Apodiformes (Bộ Yến)
Family	Ursidae (Bears)	Trochilidae
Genus	Ursus (Bears)	Ramphomicron
Species	Ursus maritimus	Ramphomicron microrhynchum

Evolutionary Relationship

Polar bear and Purple-backed Thornbill share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Purple-backed Thornbill

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	Purple-backed Thornbill
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.

Purple-backed Thornbill

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

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.

Purple-backed Thornbill

A tiny, jewel-like high-Andean hummingbird, male purple-backed thornbills display glittering violet-purple back and rump feathers with a distinctively short bill adapted for short-tubed flowers. Found in open páramo grasslands and cloud forest edges at elevations of 2,500–4,500 meters in Venezuela, Colombia, Ecuador, and Peru. Despite their small size, they are aggressive territory defenders at flower patches. Their tiny size and high-altitude specialization make them one of the most cold-adapted hummingbirds.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway