Big Bluet vs Big Finner

Enallagma durum compared with Balaenoptera physalus

Key Differences

• Big Bluet is Least Concern while Big Finner is Endangered.

Taxonomic Classification

Rank	Big Bluet	Big Finner
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Odonata (Odonata)	Cetacea (Whales & Dolphins)
Family	Coenagrionidae	Balaenopteridae (Rorquals)
Genus	Enallagma	Balaenoptera (Rorquals)
Species	Enallagma durum	Balaenoptera physalus

Evolutionary Relationship

Big Bluet and Big Finner share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Big Bluet

LC — Least Concern

Big Finner

EN — Endangered

Physical Characteristics

Attribute	Big Bluet	Big Finner
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Bluet

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in United States.

Big Finner

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Big Bluet

The Big Bluet (Enallagma durum) is a species in the genus Enallagma. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Big Finner

Big Finner (Balaenoptera physalus) 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.