Giant Otter vs Round Ray

Pteronura brasiliensis compared with Rajella fyllae

Key Differences

• Giant Otter is Endangered while Round Ray is Not Evaluated.

Taxonomic Classification

Rank	Giant Otter	Round Ray
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Elasmobranchii
Order	Carnivora (ネコ目)	Rajiformes (ガンギエイ目)
Family	Mustelidae (Weasels & Otters)	Rajidae
Genus	Pteronura	Rajella
Species	Pteronura brasiliensis	Rajella fyllae

Evolutionary Relationship

Giant Otter and Round Ray share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Giant Otter

EN — Endangered

Round Ray

NE — Not Evaluated

Physical Characteristics

Attribute	Giant Otter	Round Ray
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.

Round Ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.