Big-eared opossum vs Common Tern

Didelphis aurita compared with Sterna hirundo

Key Differences

• Big-eared opossum is Least Concern while Common Tern is Endangered.

Taxonomic Classification

Rank	Big-eared opossum	Common Tern
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Mammalia (포유류)	Aves (새)
Order	Didelphimorphia (주머니쥐)	Charadriiformes (도요목)
Family	Didelphidae	Laridae
Genus	Didelphis	Sterna
Species	Didelphis aurita	Sterna hirundo

Evolutionary Relationship

Big-eared opossum and Common Tern share a common ancestor at the Phylum level: Chordata. (척삭동물)

Conservation Status

Big-eared opossum

LC — Least Concern

Common Tern

EN — Endangered

Physical Characteristics

Attribute	Big-eared opossum	Common Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big-eared opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Tern

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 9 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Big-eared opossum

The Big-eared opossum (Didelphis aurita) is a species in the genus Didelphis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Common Tern

제비갈매기(Sterna hirundo)는 IUCN 적색목록에서 위기(EN)로 분류된다. 야생에서 멸종 위험이 높으며 상당한 개체수 감소와 생존을 위협하는 요인들이 지속되고 있다.