Amazon Black Howler vs Redvein dock

Alouatta nigerrima compared with Rumex sanguineus

Key Differences

• Amazon Black Howler is Least Concern while Redvein dock is Critically Endangered.

Taxonomic Classification

Rank	Amazon Black Howler	Redvein dock
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Primates (Primates)	Caryophyllales (Caryophyllales)
Family	Atelidae	Polygonaceae
Genus	Alouatta	Rumex
Species	Alouatta nigerrima	Rumex sanguineus

Conservation Status

Amazon Black Howler

LC — Least Concern

Redvein dock

CR — Critically Endangered

Physical Characteristics

Attribute	Amazon Black Howler	Redvein dock
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Redvein dock

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate grasslands and steppes, among 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan), Europe (7 countries), North America (Canada, United States), and South America (Chile). Currently classified as Critically 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.