Amazon Black Howler vs Two-colored Robber Frog

Alouatta nigerrima compared with Pristimantis bicolor

Key Differences

• Amazon Black Howler is Least Concern while Two-colored Robber Frog is Vulnerable.

Taxonomic Classification

Rank	Amazon Black Howler	Two-colored Robber Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Primates (Primates)	Anura (Frogs & Toads)
Family	Atelidae	Craugastoridae
Genus	Alouatta	Pristimantis
Species	Alouatta nigerrima	Pristimantis bicolor

Evolutionary Relationship

Amazon Black Howler and Two-colored Robber Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amazon Black Howler

LC — Least Concern

Two-colored Robber Frog

VU — Vulnerable

Physical Characteristics

Attribute	Amazon Black Howler	Two-colored Robber Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Two-colored Robber Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Colombia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Amazon Black Howler

The Amazon Black Howler (Alouatta nigerrima) is a species in the genus Alouatta. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.