Giant Otter vs Smooth Stonewort

Pteronura brasiliensis compared with Nitella flexilis

Key Differences

• Giant Otter is Endangered while Smooth Stonewort is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Smooth Stonewort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Charophyta (Charophyta)
Class	Mammalia (Mammals)	Charophyceae (Charophyceae)
Order	Carnivora (Carnivorans)	Charales (Charales)
Family	Mustelidae (Weasels & Otters)	Characeae
Genus	Pteronura	Nitella
Species	Pteronura brasiliensis	Nitella flexilis

Conservation Status

Giant Otter

EN — Endangered

Smooth Stonewort

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Smooth Stonewort
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.

Smooth Stonewort

Habitat

Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Denmark, Norway, Sweden, and United States.