Giant Otter vs

Pteronura brasiliensis compared with Sphingopyxis granuli

Key Differences

• Giant Otter is Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Giant Otter
Kingdom	Animalia (Animals)	Bacteria (Bacteria)
Phylum	Chordata (Chordates)	Proteobacteria (Proteobacteria)
Class	Mammalia (Mammals)	Alphaproteobacteria (Alphaproteobacteria)
Order	Carnivora (Carnivorans)	Sphingomonadales (Sphingomonadales)
Family	Mustelidae (Weasels & Otters)	Sphingomonadaceae
Genus	Pteronura	Sphingopyxis
Species	Pteronura brasiliensis	Sphingopyxis granuli

Conservation Status

Giant Otter

EN — Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Giant Otter
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.

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

Sphingopyxis granuli is a Gram-negative alphaproteobacterium in the family Sphingomonadaceae, characterized by its yellow-pigmented colonies and the presence of sphingolipids in its membrane—a trait shared across the family. It was isolated from granule-associated material and is aerobic, rod-shaped, and motile. Sphingopyxis species are common in soils, freshwater, and plant-associated environments.