Fen Roller vs Giant Otter

Ancylis paludana compared with Pteronura brasiliensis

Key Differences

• Fen Roller is Near Threatened while Giant Otter is Endangered.

Taxonomic Classification

Rank	Fen Roller	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	Tortricidae	Mustelidae (Weasels & Otters)
Genus	Ancylis	Pteronura
Species	Ancylis paludana	Pteronura brasiliensis

Evolutionary Relationship

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

Conservation Status

Fen Roller

NT — Near Threatened

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Fen Roller	Giant Otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Fen Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.