Amazon River Dolphin vs Bridled Tern

Inia geoffrensis compared with Onychoprion anaethetus

Key Differences

• Amazon River Dolphin is Data Deficient while Bridled Tern is Least Concern.

Taxonomic Classification

Rank	Amazon River Dolphin	Bridled Tern
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class	Mammalia (memeliler)	Aves (kuş)
Order	Cetacea (Whales & Dolphins)	Charadriiformes (Yağmur kuşları)
Family	Iniidae	Laridae
Genus	Inia	Onychoprion
Species	Inia geoffrensis	Onychoprion anaethetus

Evolutionary Relationship

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

Conservation Status

Amazon River Dolphin

DD — Data Deficient

Bridled Tern

LC — Least Concern

Physical Characteristics

Attribute	Amazon River Dolphin	Bridled 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.

Bridled Tern

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (4 countries) and South America (Colombia, Ecuador, Venezuela).

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.

Bridled Tern

The Bridled Tern (Onychoprion anaethetus) is a species in the genus Onychoprion. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela