Chestnut Pigmy vs Giant Otter

Stigmella samiatella compared with Pteronura brasiliensis

Key Differences

• Chestnut Pigmy is Least Concern while Giant Otter is Endangered.

Taxonomic Classification

Rank	Chestnut Pigmy	Giant Otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Carnivora (Carnivorans)
Family	Nepticulidae	Mustelidae (Weasels & Otters)
Genus	Stigmella	Pteronura
Species	Stigmella samiatella	Pteronura brasiliensis

Evolutionary Relationship

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

Conservation Status

Chestnut Pigmy

LC — Least Concern

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Chestnut Pigmy	Giant Otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Chestnut Pigmy

The Chestnut Pigmy (Stigmella samiatella) is a species in the genus Stigmella. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.