Narrow-headed Vole vs Smooth hound

Microtus gregalis compared with Triakis maculata

Key Differences

• Narrow-headed Vole is Least Concern while Smooth hound is Critically Endangered.

Taxonomic Classification

Rank	Narrow-headed Vole	Smooth hound
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Mammalia (Säugetiere)	Chondrichthyes (Knorpelfische)
Order	Rodentia (Nagetiere)	Carcharhiniformes (Grundhaie)
Family	Cricetidae	Triakidae
Genus	Microtus	Triakis
Species	Microtus gregalis	Triakis maculata

Evolutionary Relationship

Narrow-headed Vole and Smooth hound share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Narrow-headed Vole

LC — Least Concern

Smooth hound

CR — Critically Endangered

Physical Characteristics

Attribute	Narrow-headed Vole	Smooth hound
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Narrow-headed Vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Smooth hound

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Found in Chile. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.