Caloptéryx vierge vs baleine bleue

Calopteryx virgo compared with Balaenoptera musculus

Key Differences

• Caloptéryx vierge is Endangered while baleine bleue is Vulnerable.

Taxonomic Classification

Rank	Caloptéryx vierge	baleine bleue
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Arthropoda (arthropodes)	Chordata (Chordates)
Class	Insecta (insecte)	Mammalia (mammifères)
Order	Odonata (Odonata)	Cetacea (Whales & Dolphins)
Family	Calopterygidae	Balaenopteridae (Rorquals)
Genus	Calopteryx	Balaenoptera (Rorquals)
Species	Calopteryx virgo	Balaenoptera musculus

Evolutionary Relationship

Caloptéryx vierge and baleine bleue share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

Caloptéryx vierge

EN — Endangered

baleine bleue

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Caloptéryx vierge	baleine bleue
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

Caloptéryx vierge

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (6 countries). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Caloptéryx vierge

Beautiful Demoiselle (Calopteryx virgo) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

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.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden