Arctic Tern vs Atlantic Humpbacked Dolphin

Sterna paradisaea compared with Sousa teuszii

Key Differences

• Arctic Tern is Least Concern while Atlantic Humpbacked Dolphin is Critically Endangered.

Taxonomic Classification

Rank	Arctic Tern	Atlantic Humpbacked 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	Sousa
Species	Sterna paradisaea	Sousa teuszii

Evolutionary Relationship

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

Conservation Status

Arctic Tern

LC — Least Concern

Atlantic Humpbacked Dolphin

CR — Critically Endangered

Physical Characteristics

Attribute	Arctic Tern	Atlantic Humpbacked 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).

Atlantic Humpbacked Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Atlantic Humpbacked Dolphin

The Atlantic Humpbacked Dolphin (Sousa teuszii) is a species in the genus Sousa. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.