Gray-backed Tern vs Napo Spiny-rat

Onychoprion lunatus compared with Proechimys quadruplicatus

Taxonomic Classification

Rank	Gray-backed 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	Onychoprion	Proechimys
Species	Onychoprion lunatus	Proechimys quadruplicatus

Evolutionary Relationship

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

Conservation Status

Gray-backed Tern

LC — Least Concern

Napo Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Gray-backed Tern	Napo Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-backed Tern

Habitat

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

Range

Found in Norway.

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.