Canadian Otter vs Smooth hound

Lontra canadensis compared with Triakis maculata

Key Differences

• Canadian Otter is Least Concern while Smooth hound is Critically Endangered.

Taxonomic Classification

Rank	Canadian Otter	Smooth hound
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Chondrichthyes (軟骨魚綱)
Order	Carnivora (ネコ目)	Carcharhiniformes (メジロザメ目)
Family	Mustelidae (Weasels & Otters)	Triakidae
Genus	Lontra	Triakis
Species	Lontra canadensis	Triakis maculata

Evolutionary Relationship

Canadian Otter and Smooth hound share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Canadian Otter

LC — Least Concern

Smooth hound

CR — Critically Endangered

Physical Characteristics

Attribute	Canadian Otter	Smooth hound
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Canadian Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

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.

Canadian Otter

The Canadian Otter (Lontra canadensis) is a species in the genus Lontra. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.