baleine à bosse vs Coelacanthe

Megaptera novaeangliae compared with Latimeria chalumnae

Key Differences

• baleine à bosse is Vulnerable while Coelacanthe is Critically Endangered.
• baleine à bosse is 375.0x heavier than Coelacanthe.
• Coelacanthe lives longer (100 years vs 50 years).

Taxonomic Classification

Rank	baleine à bosse	Coelacanthe
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (mammifères)	Coelacanthi (Coelacanthi)
Order	Cetacea (Whales & Dolphins)	Coelacanthiformes (Cœlacanthe)
Family	Balaenopteridae (Rorquals)	Latimeriidae
Genus	Megaptera (Humpback Whales)	Latimeria
Species	Megaptera novaeangliae	Latimeria chalumnae

Evolutionary Relationship

baleine à bosse and Coelacanthe share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

baleine à bosse

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

Coelacanthe

CR — Critically Endangered

Population: ~500

Trend: Decreasing ↓

Physical Characteristics

Attribute	baleine à bosse	Coelacanthe
Diet	Carnivore	Carnivore
Average Lifespan	50 years	100 years
Average Length	15.0 m	1.8 m
Average Weight	30.0 t	80.0 kg

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.

Coelacanthe

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 8 distinct biome types spanning the Australasia and Afrotropic and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Comoros, Indonesia, Mozambique, and South Africa. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Coelacanthe

A living fossil thought extinct for 65 million years until rediscovered off South Africa in 1938, coelacanths can reach 2 meters and 90 kg. They belong to an ancient lobe-finned lineage more closely related to tetrapods than to ray-finned fish, making them scientifically invaluable for understanding vertebrate evolution. Found in deep rocky reef habitats of the Indian Ocean, they are nocturnal and undergo internal fertilization, giving birth to fully formed live young. Critically Endangered.