Azuré des astragales vs baleine bleue

Kretania trappi compared with Balaenoptera musculus

Key Differences

• Azuré des astragales is Near Threatened while baleine bleue is Vulnerable.

Taxonomic Classification

Rank	Azuré des astragales	baleine bleue
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Arthropoda (arthropodes)	Chordata (Chordates)
Class	Insecta (insecte)	Mammalia (mammifères)
Order	Lepidoptera (Butterflies & Moths)	Cetacea (Whales & Dolphins)
Family	Lycaenidae	Balaenopteridae (Rorquals)
Genus	Kretania	Balaenoptera (Rorquals)
Species	Kretania trappi	Balaenoptera musculus

Evolutionary Relationship

Azuré des astragales and baleine bleue share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

Azuré des astragales

NT — Near Threatened

baleine bleue

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Azuré des astragales	baleine bleue
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

Azuré des astragales

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across France, Italy, and Switzerland. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Azuré des astragales

The Alpine Zephyr Blue (Kretania trappi) is a species in the genus Kretania. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats. Distributed across France, Italy, and Switzerland. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.