Cat flea vs Lion

Ctenocephalides felis compared with Panthera leo

Key Differences

Cat flea is Not Evaluated while Lion is Vulnerable.

Taxonomic Classification

Rank	Cat flea	Lion
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Siphonaptera (Siphonaptera)	Carnivora (Carnivorans)
Family	Pulicidae	Felidae (Cats)
Genus	Ctenocephalides	Panthera (Big Cats)
Species	Ctenocephalides felis	Panthera leo

Evolutionary Relationship

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

View Kingdom: Animalia

Conservation Status

Cat flea

NE — Not Evaluated

Lion

VU — Vulnerable

Population: ~23.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Cat flea	Lion
Diet	—	Carnivore
Average Lifespan	—	15 years
Average Length	—	2.5 m
Average Weight	—	190.0 kg

Habitat & Geographic 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).

Lion

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 7 distinct biome types spanning the Afrotropic and Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia, Ecuador, and Kenya. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Cat flea

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

Lion

The largest wild cat in Africa, lions reach up to 250 kg and are the only social felids, living in prides across sub-Saharan savannas and grasslands. Males are distinguished by their iconic manes. As apex predators, they regulate herbivore populations and maintain ecosystem balance. Listed as Vulnerable due to habitat loss and human-wildlife conflict.