Arctic Tern vs Pacific Spiny-rat

Sterna paradisaea compared with Proechimys decumanus

Key Differences

• Arctic Tern is Least Concern while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Arctic Tern	Pacific Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Charadriiformes (Charadriiformes)	Rodentia (Rodents)
Family	Laridae	Echimyidae
Genus	Sterna	Proechimys
Species	Sterna paradisaea	Proechimys decumanus

Evolutionary Relationship

Arctic Tern and Pacific Spiny-rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arctic Tern

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Arctic Tern	Pacific Spiny-rat
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).

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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:

🇪🇨 Ecuador