Arctic lemming vs Sandwich Tern

Dicrostonyx torquatus compared with Thalasseus sandvicensis

Taxonomic Classification

Rank	Arctic lemming	Sandwich Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Charadriiformes (Charadriiformes)
Family	Cricetidae	Laridae
Genus	Dicrostonyx	Thalasseus
Species	Dicrostonyx torquatus	Thalasseus sandvicensis

Evolutionary Relationship

Arctic lemming and Sandwich Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arctic lemming

LC — Least Concern

Sandwich Tern

LC — Least Concern

Physical Characteristics

Attribute	Arctic lemming	Sandwich Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic lemming

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Sandwich Tern

Habitat

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

Range

Found across Europe (4 countries) and South America (Colombia, Ecuador, Venezuela).

Arctic lemming

The Arctic lemming (Dicrostonyx torquatus) is a species in the genus Dicrostonyx. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Sandwich Tern

Sandwich Tern (Thalasseus sandvicensis) 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.