Giant Otter vs Smith's Thorius

Pteronura brasiliensis compared with Thorius smithi

Key Differences

• Giant Otter is Endangered while Smith's Thorius is Critically Endangered.

Taxonomic Classification

Rank	Giant Otter	Smith's Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Carnivora (Carnivorans)	Caudata (Caudata)
Family	Mustelidae (Weasels & Otters)	Plethodontidae
Genus	Pteronura	Thorius
Species	Pteronura brasiliensis	Thorius smithi

Evolutionary Relationship

Giant Otter and Smith's Thorius share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Giant Otter

EN — Endangered

Smith's Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Giant Otter	Smith's Thorius
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Smith's Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

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