baleine à bosse vs Pygmy three-toed sloth

Megaptera novaeangliae compared with Bradypus pygmaeus

Key Differences

• baleine à bosse is Vulnerable while Pygmy three-toed sloth is Critically Endangered.

Taxonomic Classification

Rank	baleine à bosse	Pygmy three-toed sloth
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order	Cetacea (Whales & Dolphins)	Pilosa (Sloths & Anteaters)
Family	Balaenopteridae (Rorquals)	Bradypodidae (Three-toed Sloths)
Genus	Megaptera (Humpback Whales)	Bradypus (Three-toed Sloths)
Species	Megaptera novaeangliae	Bradypus pygmaeus

Evolutionary Relationship

baleine à bosse and Pygmy three-toed sloth share a common ancestor at the Class level: Mammalia. (mammifères)

Conservation Status

baleine à bosse

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

Pygmy three-toed sloth

CR — Critically Endangered

Physical Characteristics

Attribute	baleine à bosse	Pygmy three-toed sloth
Diet	Carnivore	—
Average Lifespan	50 years	—
Average Length	15.0 m	—
Average Weight	30.0 t	—

Habitat & Geographic Range

baleine à bosse

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 (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Pygmy three-toed sloth

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

baleine à bosse

Among the most acrobatic of the great whales, humpback whales are renowned for their complex, haunting songs sung by males during breeding season — some lasting hours and evolving over time. Reaching 16 meters and 30 tonnes, they undertake the longest migrations of any mammal. Found in all oceans, humpbacks feed on krill and small fish using cooperative bubble-net feeding. Populations have largely recovered from historic whaling.