a bat flea vs blue whale

Ischnopsyllus intermedius compared with Balaenoptera musculus

Key Differences

• a bat flea is Not Evaluated while blue whale is Vulnerable.

Taxonomic Classification

Rank	a bat flea	blue whale
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Siphonaptera (Siphonaptera)	Cetacea (Whales & Dolphins)
Family	Ischnopsyllidae	Balaenopteridae (Rorquals)
Genus	Ischnopsyllus	Balaenoptera (Rorquals)
Species	Ischnopsyllus intermedius	Balaenoptera musculus

Evolutionary Relationship

a bat flea and blue whale share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

a bat flea

NE — Not Evaluated

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	a bat flea	blue whale
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

a bat flea

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

blue whale

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.

a bat flea

The a bat flea (Ischnopsyllus intermedius) is a species in the genus Ischnopsyllus. It is not yet evaluated on the IUCN Red List. It is found across Denmark, Norway, Portugal, and Sweden, inhabiting diverse terrestrial and freshwater habitats.

blue whale

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 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden