Giant Otter vs Northern Right Whale Dolphin

Pteronura brasiliensis compared with Lissodelphis borealis

Key Differences

• Giant Otter is Endangered while Northern Right Whale Dolphin is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Northern Right Whale Dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Carnivora (Carnivorans)	Cetacea (Whales & Dolphins)
Family	Mustelidae (Weasels & Otters)	Delphinidae (Oceanic Dolphins)
Genus	Pteronura	Lissodelphis
Species	Pteronura brasiliensis	Lissodelphis borealis

Evolutionary Relationship

Giant Otter and Northern Right Whale Dolphin share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Giant Otter

EN — Endangered

Northern Right Whale Dolphin

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Northern Right Whale Dolphin
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.

Northern Right Whale Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.