Brazilian Gracile Opossum vs Oso Polar

Gracilinanus microtarsus compared with Ursus maritimus

Key Differences

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

Taxonomic Classification

Rank	Brazilian Gracile Opossum	Oso Polar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Mammalia (mamíferos)	Mammalia (mamíferos)
Order	Didelphimorphia (Didelphimorphia)	Carnivora (carnívoros)
Family	Didelphidae	Ursidae (Bears)
Genus	Gracilinanus	Ursus (Bears)
Species	Gracilinanus microtarsus	Ursus maritimus

Evolutionary Relationship

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

Conservation Status

Brazilian Gracile Opossum

LC — Least Concern

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Brazilian Gracile Opossum	Oso Polar
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.

Oso Polar

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.

Oso Polar

El mayor carnivoro terrestre de la Tierra, el oso polar puede superar los 700 kg y se encuentra en el hielo marino del Artico, desde Canada hasta Rusia. Es un mamifero marino altamente especializado que depende del hielo marino para cazar focas anilladas y barbadas. Excelente nadador capaz de cubrir grandes distancias en agua abierta. Clasificado como Vulnerable, sus poblaciones soportan una presion severa por la rapida perdida de hielo marino artico debida al cambio climatico.