Giant Otter vs Mouse-ear Groundling

Pteronura brasiliensis compared with Caryocolum fraternella

Key Differences

• Giant Otter is Endangered while Mouse-ear Groundling is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Mouse-ear Groundling
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Carnivora (Carnivorans)	Lepidoptera (Butterflies & Moths)
Family	Mustelidae (Weasels & Otters)	Gelechiidae
Genus	Pteronura	Caryocolum
Species	Pteronura brasiliensis	Caryocolum fraternella

Evolutionary Relationship

Giant Otter and Mouse-ear Groundling share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Giant Otter

EN — Endangered

Mouse-ear Groundling

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Mouse-ear Groundling
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.

Mouse-ear Groundling

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.