Polar bear vs Tahiti Petrel

Ursus maritimus compared with Pseudobulweria rostrata

Key Differences

• Polar bear is Vulnerable while Tahiti Petrel is Near Threatened.

Taxonomic Classification

Rank	Polar bear	Tahiti Petrel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Procellariiformes (Procellariiformes)
Family	Ursidae (Bears)	Procellariidae
Genus	Ursus (Bears)	Pseudobulweria
Species	Ursus maritimus	Pseudobulweria rostrata

Evolutionary Relationship

Polar bear and Tahiti Petrel share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Tahiti Petrel

NT — Near Threatened

Physical Characteristics

Attribute	Polar bear	Tahiti Petrel
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.

Tahiti Petrel

Habitat

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

Range

Distributed across Colombia and Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway