Big Finner vs Cat flea

Balaenoptera physalus compared with Ctenocephalides felis

Key Differences

• Big Finner is Endangered while Cat flea is Not Evaluated.

Taxonomic Classification

Rank	Big Finner	Cat flea
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Cetacea (Whales & Dolphins)	Siphonaptera (Siphonaptera)
Family	Balaenopteridae (Rorquals)	Pulicidae
Genus	Balaenoptera (Rorquals)	Ctenocephalides
Species	Balaenoptera physalus	Ctenocephalides felis

Evolutionary Relationship

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

Conservation Status

Big Finner

EN — Endangered

Cat flea

NE — Not Evaluated

Physical Characteristics

Attribute	Big Finner	Cat flea
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Cat flea

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Africa (South Africa), Europe (6 countries), and North America (United States).

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.

Cat flea

The Cat flea (Ctenocephalides felis) is a species in the genus Ctenocephalides. Typically found in virtually all terrestrial and freshwater habitats.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden