Black-shouldered Opossum vs blue whale

Caluromysiops irrupta compared with Balaenoptera musculus

Key Differences

• Black-shouldered Opossum is Least Concern while blue whale is Vulnerable.

Taxonomic Classification

Rank	Black-shouldered Opossum	blue whale
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order	Didelphimorphia (Опоссумы)	Cetacea (Whales & Dolphins)
Family	Didelphidae	Balaenopteridae (Rorquals)
Genus	Caluromysiops	Balaenoptera (Rorquals)
Species	Caluromysiops irrupta	Balaenoptera musculus

Evolutionary Relationship

Black-shouldered Opossum and blue whale share a common ancestor at the Class level: Mammalia. (млекопитающие)

Conservation Status

Black-shouldered Opossum

LC — Least Concern

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Black-shouldered Opossum	blue whale
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

Black-shouldered Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

blue whale

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-shouldered Opossum

The Black-shouldered Opossum (Caluromysiops irrupta) is a species in the genus Caluromysiops. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

blue whale

The largest animal ever known to have lived on Earth, blue whales can reach 33 meters and 200 tonnes — their hearts alone weigh as much as a small car. Found in all oceans, they migrate between polar feeding grounds and tropical breeding areas. Filter feeders consuming up to 4 tonnes of krill daily. Endangered, with global populations estimated at 10,000–25,000 after near-extinction from 20th-century whaling.

Shared Countries

Both species can be found in 1 countries:

🇨🇴 Colombia