Dusky Dolphin vs Gray-bellied Night Monkey

Lagenorhynchus obscurus compared with Aotus lemurinus

Key Differences

• Dusky Dolphin is Least Concern while Gray-bellied Night Monkey is Vulnerable.

Taxonomic Classification

Rank	Dusky 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	Delphinidae (Oceanic Dolphins)	Aotidae
Genus	Lagenorhynchus	Aotus
Species	Lagenorhynchus obscurus	Aotus lemurinus

Evolutionary Relationship

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

Conservation Status

Dusky Dolphin

LC — Least Concern

Gray-bellied Night Monkey

VU — Vulnerable

Physical Characteristics

Attribute	Dusky Dolphin	Gray-bellied Night Monkey
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dusky Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.