Amazon Black Howler vs Gregg's Stream Frog

Alouatta nigerrima compared with Craugastor greggi

Key Differences

• Amazon Black Howler is Least Concern while Gregg's Stream Frog is Endangered.

Taxonomic Classification

Rank	Amazon Black Howler	Gregg's Stream 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	Craugastor
Species	Alouatta nigerrima	Craugastor greggi

Evolutionary Relationship

Amazon Black Howler and Gregg's Stream Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amazon Black Howler

LC — Least Concern

Gregg's Stream Frog

EN — Endangered

Physical Characteristics

Attribute	Amazon Black Howler	Gregg's Stream Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Gregg's Stream Frog

Habitat

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

Range

Found in Mexico. Currently classified as Endangered 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.