Arctic Tern vs Napo Spiny-rat

Sterna paradisaea compared with Proechimys quadruplicatus

Taxonomic Classification

Rank	Arctic Tern	Napo 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 quadruplicatus

Evolutionary Relationship

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

Conservation Status

Arctic Tern

LC — Least Concern

Napo Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Arctic Tern	Napo 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).

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, 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 2 countries:

🇨🇴 Colombia 🇪🇨 Ecuador