Giant Otter vs Silverfish

Pteronura brasiliensis compared with Ctenolepisma longicaudatum

Key Differences

• Giant Otter is Endangered while Silverfish is Not Evaluated.

Taxonomic Classification

Rank	Giant Otter	Silverfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Carnivora (Carnivorans)	Zygentoma (Zygentoma)
Family	Mustelidae (Weasels & Otters)	Lepismatidae
Genus	Pteronura	Ctenolepisma
Species	Pteronura brasiliensis	Ctenolepisma longicaudatum

Evolutionary Relationship

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

Conservation Status

Giant Otter

EN — Endangered

Silverfish

NE — Not Evaluated

Physical Characteristics

Attribute	Giant Otter	Silverfish
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.

Silverfish

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Africa (South Africa), Asia (Cyprus, Taiwan), Europe (11 countries), and North America (United States).