Amazon River Dolphin vs Common Tern

Inia geoffrensis compared with Sterna hirundo

Key Differences

• Amazon River Dolphin is Data Deficient while Common Tern is Endangered.

Taxonomic Classification

Rank	Amazon River Dolphin	Common Tern
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Mammalia (포유류)	Aves (새)
Order	Cetacea (Whales & Dolphins)	Charadriiformes (도요목)
Family	Iniidae	Laridae
Genus	Inia	Sterna
Species	Inia geoffrensis	Sterna hirundo

Evolutionary Relationship

Amazon River Dolphin and Common Tern share a common ancestor at the Phylum level: Chordata. (척삭동물)

Conservation Status

Amazon River Dolphin

DD — Data Deficient

Common Tern

EN — Endangered

Physical Characteristics

Attribute	Amazon River Dolphin	Common Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon River Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.

Amazon River Dolphin

The Amazon River Dolphin (Inia geoffrensis) is a species in the genus Inia. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. 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.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela