Dusky Dolphin vs Giant Otter

Lagenorhynchus obscurus compared with Pteronura brasiliensis

Key Differences

• Dusky Dolphin is Least Concern while Giant Otter is Endangered.

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Dusky Dolphin

LC — Least Concern

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Dusky Dolphin	Giant Otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dusky Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.