Brazilian Gracile Opossum vs Polar bear

Gracilinanus microtarsus compared with Ursus maritimus

Key Differences

• Brazilian Gracile Opossum is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Brazilian Gracile Opossum	Polar bear
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Didelphimorphia (Didelphimorphia)	Carnivora (Carnivorans)
Family	Didelphidae	Ursidae (Bears)
Genus	Gracilinanus	Ursus (Bears)
Species	Gracilinanus microtarsus	Ursus maritimus

Evolutionary Relationship

Brazilian Gracile Opossum and Polar bear share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Brazilian Gracile Opossum

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Brazilian Gracile Opossum	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Brazilian Gracile Opossum

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.

Brazilian Gracile Opossum

The Brazilian Gracile Opossum (Gracilinanus microtarsus) is a species in the genus Gracilinanus. 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.