Gray-bellied Night Monkey vs Irrawaddy dolphin

Aotus lemurinus compared with Orcaella brevirostris

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Irrawaddy dolphin is Endangered.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Irrawaddy dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Primates (Primates)	Cetacea (Whales & Dolphins)
Family	Aotidae	Delphinidae (Oceanic Dolphins)
Genus	Aotus	Orcaella
Species	Aotus lemurinus	Orcaella brevirostris

Evolutionary Relationship

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

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Irrawaddy dolphin

EN — Endangered

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Irrawaddy dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.