Giant Otter vs Richardson’s Willow

Pteronura brasiliensis compared with Salix richardsonii

Key Differences

• Giant Otter is Endangered while Richardson’s Willow is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Richardson’s Willow
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Carnivora (Carnivorans)	Malpighiales (Malpighiales)
Family	Mustelidae (Weasels & Otters)	Salicaceae
Genus	Pteronura	Salix
Species	Pteronura brasiliensis	Salix richardsonii

Conservation Status

Giant Otter

EN — Endangered

Richardson’s Willow

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Richardson’s Willow
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.

Richardson’s Willow

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Canada and Norway.