baleine bleue vs Épithèque à Queue de Beagle

Balaenoptera musculus compared with Epitheca cynosura

Key Differences

• baleine bleue is Vulnerable while Épithèque à Queue de Beagle is Least Concern.

Taxonomic Classification

Rank	baleine bleue	Épithèque à Queue de Beagle
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Chordata (Chordates)	Arthropoda (arthropodes)
Class	Mammalia (mammifères)	Insecta (insecte)
Order	Cetacea (Whales & Dolphins)	Odonata (Odonata)
Family	Balaenopteridae (Rorquals)	Corduliidae
Genus	Balaenoptera (Rorquals)	Epitheca
Species	Balaenoptera musculus	Epitheca cynosura

Evolutionary Relationship

baleine bleue and Épithèque à Queue de Beagle share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

baleine bleue

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Épithèque à Queue de Beagle

LC — Least Concern

Physical Characteristics

Attribute	baleine bleue	Épithèque à Queue de Beagle
Diet	Carnivore	—
Average Lifespan	90 years	—
Average Length	30.0 m	—
Average Weight	150.0 t	—

Habitat & Geographic 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.

Épithèque à Queue de Beagle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in United States.

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.

Épithèque à Queue de Beagle

The common baskettail (<em>Epitheca cynosura</em>) is a dragonfly found across terrestrial and freshwater habitats of the United States. It is classified as Least Concern on the IUCN Red List, reflecting a stable and widespread population within its native range. <em>Epitheca cynosura</em> belongs to the family Corduliidae and is typically associated with ponds, lakes, marshes, and slow-moving streams, where its aquatic larvae develop. Adults are often observed patrolling over open water and forest edges in search of prey and mates. The species is named for the basket-like egg mass that females carry at the tip of their abdomen before depositing eggs in water. Males often form feeding swarms, particularly in the morning hours, where they capture small flying insects. Biological traits of this species remain poorly documented in the scientific literature.