Arctic Tern vs Guiana Dolphin

Sterna paradisaea compared with Sotalia guianensis

Key Differences

• Arctic Tern is Least Concern while Guiana Dolphin is Data Deficient.

Taxonomic Classification

Rank	Arctic Tern	Guiana Dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Charadriiformes (Charadriiformes)	Cetacea (Whales & Dolphins)
Family	Laridae	Delphinidae (Oceanic Dolphins)
Genus	Sterna	Sotalia
Species	Sterna paradisaea	Sotalia guianensis

Evolutionary Relationship

Arctic Tern and Guiana Dolphin share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arctic Tern

LC — Least Concern

Guiana Dolphin

DD — Data Deficient

Physical Characteristics

Attribute	Arctic Tern	Guiana Dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic Tern

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia, Ecuador).

Guiana Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Arctic Tern

Arctic Tern (Sterna paradisaea) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 1 countries:

🇨🇴 Colombia