baleine à bosse vs grand dauphin, souffleur, dauphin à gros nez

Megaptera novaeangliae compared with Tursiops truncatus

Key Differences

• baleine à bosse is Vulnerable while grand dauphin, souffleur, dauphin à gros nez is Least Concern.
• baleine à bosse is 100.0x heavier than grand dauphin, souffleur, dauphin à gros nez.
• baleine à bosse lives longer (50 years vs 45 years).

Taxonomic Classification

Rank	baleine à bosse	grand dauphin, souffleur, dauphin à gros nez
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order same	Cetacea (Whales & Dolphins)	Cetacea (Whales & Dolphins)
Family	Balaenopteridae (Rorquals)	Delphinidae (Oceanic Dolphins)
Genus	Megaptera (Humpback Whales)	Tursiops (Bottlenose Dolphins)
Species	Megaptera novaeangliae	Tursiops truncatus

Evolutionary Relationship

baleine à bosse and grand dauphin, souffleur, dauphin à gros nez share a common ancestor at the Order level: Cetacea. (Whales & Dolphins)

Conservation Status

baleine à bosse

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

grand dauphin, souffleur, dauphin à gros nez

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	baleine à bosse	grand dauphin, souffleur, dauphin à gros nez
Diet	Carnivore	Carnivore
Average Lifespan	50 years	45 years
Average Length	15.0 m	3.0 m
Average Weight	30.0 t	300.0 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.

grand dauphin, souffleur, dauphin à gros nez

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 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

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.

grand dauphin, souffleur, dauphin à gros nez

The most studied and recognized dolphin species, bottlenose dolphins inhabit warm and temperate oceans worldwide, from coastal shallows to the open sea. Highly intelligent with large brains relative to body size, they demonstrate self-recognition, complex communication, and social learning. They live in fluid fission-fusion societies and cooperate to herd fish. A keystone indicator species for marine ecosystem health.

Shared Countries

Both species can be found in 9 countries:

🇧🇪 Belgium 🇨🇴 Colombia 🇩🇰 Denmark 🇪🇨 Ecuador 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇹🇼 Taiwan 🇻🇪 Venezuela