Giant Otter vs Least Crayfish

Pteronura brasiliensis compared with Cambarellus diminutus

Key Differences

• Giant Otter is Endangered while Least Crayfish is Data Deficient.

Taxonomic Classification

Rank	Giant Otter	Least Crayfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Malacostraca (Crustaceans)
Order	Carnivora (Carnivorans)	Decapoda (Decapoda)
Family	Mustelidae (Weasels & Otters)	Cambaridae
Genus	Pteronura	Cambarellus
Species	Pteronura brasiliensis	Cambarellus diminutus

Evolutionary Relationship

Giant Otter and Least Crayfish share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Giant Otter

EN — Endangered

Least Crayfish

DD — Data Deficient

Physical Characteristics

Attribute	Giant Otter	Least Crayfish
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.

Least Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Norway.