Amazon River Dolphin vs Gray-bellied Night Monkey

Inia geoffrensis compared with Aotus lemurinus

Key Differences

• Amazon River Dolphin is Data Deficient while Gray-bellied Night Monkey is Vulnerable.

Taxonomic Classification

Rank	Amazon River Dolphin	Gray-bellied Night Monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Cetacea (Whales & Dolphins)	Primates (Primates)
Family	Iniidae	Aotidae
Genus	Inia	Aotus
Species	Inia geoffrensis	Aotus lemurinus

Evolutionary Relationship

Amazon River Dolphin and Gray-bellied Night Monkey share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Amazon River Dolphin

DD — Data Deficient

Gray-bellied Night Monkey

VU — Vulnerable

Physical Characteristics

Attribute	Amazon River Dolphin	Gray-bellied Night Monkey
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.

Gray-bellied Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Currently classified as Vulnerable 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 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela