Giant Otter vs Ray

Pteronura brasiliensis compared with Atlantoraja castelnaui

Key Differences

• Giant Otter is Endangered while Ray is Critically Endangered.

Taxonomic Classification

Rank	Giant Otter	Ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Carnivora (Carnivorans)	Rajiformes (Rajiformes)
Family	Mustelidae (Weasels & Otters)	Arhynchobatidae
Genus	Pteronura	Atlantoraja
Species	Pteronura brasiliensis	Atlantoraja castelnaui

Evolutionary Relationship

Giant Otter and Ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Giant Otter

EN — Endangered

Ray

CR — Critically Endangered

Physical Characteristics

Attribute	Giant Otter	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.

Ray