Gray-bellied Night Monkey vs Little Grebe

Aotus lemurinus compared with Tachybaptus ruficollis

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Little Grebe is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Little Grebe
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Podicipediformes (Podicipediformes)
Family	Aotidae	Podicipedidae
Genus	Aotus	Tachybaptus
Species	Aotus lemurinus	Tachybaptus ruficollis

Evolutionary Relationship

Gray-bellied Night Monkey and Little Grebe share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Little Grebe

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Little Grebe
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.

Little Grebe

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Little Grebe

Little Grebe (Tachybaptus ruficollis) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.