Amazon Black Howler vs baleine bleue

Alouatta nigerrima compared with Balaenoptera musculus

Key Differences

• Amazon Black Howler is Least Concern while baleine bleue is Vulnerable.

Taxonomic Classification

Rank	Amazon Black Howler	baleine bleue
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order	Primates (Primates)	Cetacea (Whales & Dolphins)
Family	Atelidae	Balaenopteridae (Rorquals)
Genus	Alouatta	Balaenoptera (Rorquals)
Species	Alouatta nigerrima	Balaenoptera musculus

Evolutionary Relationship

Amazon Black Howler and baleine bleue share a common ancestor at the Class level: Mammalia. (mammifères)

Conservation Status

Amazon Black Howler

LC — Least Concern

baleine bleue

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Amazon Black Howler	baleine bleue
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

Amazon Black Howler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

baleine bleue

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). 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.

baleine bleue

The largest animal ever known to have lived on Earth, blue whales can reach 33 meters and 200 tonnes — their hearts alone weigh as much as a small car. Found in all oceans, they migrate between polar feeding grounds and tropical breeding areas. Filter feeders consuming up to 4 tonnes of krill daily. Endangered, with global populations estimated at 10,000–25,000 after near-extinction from 20th-century whaling.