Greater Crested Tern vs Polynesian rat

Thalasseus bergii compared with Rattus exulans

Taxonomic Classification

Rank	Greater Crested Tern	Polynesian 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	Muridae (Mice & Rats)
Genus	Thalasseus	Rattus
Species	Thalasseus bergii	Rattus exulans

Evolutionary Relationship

Greater Crested Tern and Polynesian rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Greater Crested Tern

LC — Least Concern

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	Greater Crested Tern	Polynesian rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Greater Crested Tern

Habitat

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

Range

Found in Norway.

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).