Giant Otter vs Northern Dusky Slug

Pteronura brasiliensis compared with Arion fuscus

Key Differences

• Giant Otter is Endangered while Northern Dusky Slug is Data Deficient.

Taxonomic Classification

Rank	Giant Otter	Northern Dusky Slug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Carnivora (Carnivorans)	Stylommatophora (Stylommatophora)
Family	Mustelidae (Weasels & Otters)	Arionidae
Genus	Pteronura	Arion
Species	Pteronura brasiliensis	Arion fuscus

Evolutionary Relationship

Giant Otter and Northern Dusky Slug share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Giant Otter

EN — Endangered

Northern Dusky Slug

DD — Data Deficient

Physical Characteristics

Attribute	Giant Otter	Northern Dusky Slug
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.

Northern Dusky Slug

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found across Europe (7 countries).