Arctic lemming vs Sharp-tooth smooth hound

Dicrostonyx torquatus compared with Mustelus dorsalis

Key Differences

• Arctic lemming is Least Concern while Sharp-tooth smooth hound is Vulnerable.

Taxonomic Classification

Rank	Arctic lemming	Sharp-tooth smooth hound
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Rodentia (Rodents)	Carcharhiniformes (Ground Sharks)
Family	Cricetidae	Triakidae
Genus	Dicrostonyx	Mustelus
Species	Dicrostonyx torquatus	Mustelus dorsalis

Evolutionary Relationship

Arctic lemming and Sharp-tooth smooth hound share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arctic lemming

LC — Least Concern

Sharp-tooth smooth hound

VU — Vulnerable

Physical Characteristics

Attribute	Arctic lemming	Sharp-tooth smooth hound
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic lemming

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Sharp-tooth smooth hound

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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.