Asiatic brush-tailed porcupine vs Polar bear

Atherurus macrourus compared with Ursus maritimus

Key Differences

• Asiatic brush-tailed porcupine is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Asiatic brush-tailed porcupine	Polar bear
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class same	Mammalia (ثدييات)	Mammalia (ثدييات)
Order	Rodentia (قوارض)	Carnivora (لواحم)
Family	Hystricidae	Ursidae (Bears)
Genus	Atherurus	Ursus (Bears)
Species	Atherurus macrourus	Ursus maritimus

Evolutionary Relationship

Asiatic brush-tailed porcupine and Polar bear share a common ancestor at the Class level: Mammalia. (ثدييات)

Conservation Status

Asiatic brush-tailed porcupine

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Asiatic brush-tailed porcupine	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Asiatic brush-tailed porcupine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Asiatic brush-tailed porcupine

The Asiatic brush-tailed porcupine (Atherurus macrourus) is a species in the genus Atherurus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.