Arctic lemming vs Bighead spurdog

Dicrostonyx torquatus compared with Squalus bucephalus

Key Differences

• Arctic lemming is Least Concern while Bighead spurdog is Data Deficient.

Taxonomic Classification

Rank	Arctic lemming	Bighead spurdog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Squaliformes (Squaliformes)
Family	Cricetidae	Squalidae
Genus	Dicrostonyx	Squalus
Species	Dicrostonyx torquatus	Squalus bucephalus

Evolutionary Relationship

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

Conservation Status

Arctic lemming

LC — Least Concern

Bighead spurdog

DD — Data Deficient

Physical Characteristics

Attribute	Arctic lemming	Bighead spurdog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic lemming

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Bighead spurdog

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.

Bighead spurdog

The Bighead spurdog (Squalus bucephalus) is a species in the genus Squalus.