Black-shouldered Opossum vs Common Seal

Caluromysiops irrupta compared with Phoca vitulina

Key Differences

• Black-shouldered Opossum is Least Concern while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Black-shouldered Opossum	Common Seal
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Didelphimorphia (Didelphimorphia)	Pinnipedia (Seals & Sea Lions)
Family	Didelphidae	Phocidae (True Seals)
Genus	Caluromysiops	Phoca (Harbor Seals)
Species	Caluromysiops irrupta	Phoca vitulina

Evolutionary Relationship

Black-shouldered Opossum and Common Seal share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Black-shouldered Opossum

LC — Least Concern

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Black-shouldered Opossum	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Black-shouldered Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Common Seal

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (7 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Common Seal

The most widely distributed pinniped, harbor seals inhabit temperate and subarctic coastal waters of both the North Atlantic and North Pacific. Adults reach up to 130 kg and spend roughly equal time at sea hunting fish, squid, and crustaceans and hauling out on beaches or rocks to rest. Their large, expressive eyes are adapted for underwater vision in low light. Harbor seals are a critical food source for orcas, sharks, and polar bears.