Amazon River Dolphin vs Giant Otter

Inia geoffrensis compared with Pteronura brasiliensis

Key Differences

• Amazon River Dolphin is Data Deficient while Giant Otter is Endangered.

Taxonomic Classification

Rank	Amazon River Dolphin	Giant Otter
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Cetacea (Whales & Dolphins)	Carnivora (食肉目)
Family	Iniidae	Mustelidae (Weasels & Otters)
Genus	Inia	Pteronura
Species	Inia geoffrensis	Pteronura brasiliensis

Evolutionary Relationship

Amazon River Dolphin and Giant Otter share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

Amazon River Dolphin

DD — Data Deficient

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Amazon River Dolphin	Giant Otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon River Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.

Amazon River Dolphin

The Amazon River Dolphin (Inia geoffrensis) is a species in the genus Inia. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in diverse terrestrial and aquatic ecosystems.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela