a bird flea vs Koala

Ceratophyllus farreni compared with Phascolarctos cinereus

Key Differences

a bird flea is Not Evaluated while Koala is Vulnerable.

Taxonomic Classification

Rank	a bird flea	Koala
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Arthropoda (Gliederfüßer)	Chordata (Chordatiere)
Class	Insecta (Insekten)	Mammalia (Säugetiere)
Order	Siphonaptera (Flöhe)	Diprotodontia (Marsupials)
Family	Ceratophyllidae	Phascolarctidae (Koalas)
Genus	Ceratophyllus	Phascolarctos (Koalas)
Species	Ceratophyllus farreni	Phascolarctos cinereus

Evolutionary Relationship

a bird flea and Koala share a common ancestor at the Kingdom level: Animalia. (Tier)

Ansehen Kingdom: Animalia

Conservation Status

a bird flea

NE — Not Evaluated

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	a bird flea	Koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

a bird flea

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, and Sweden.

Koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

a bird flea

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

Koala

Iconic marsupial of eastern and southeastern Australia, koalas weigh up to 15 kg and spend up to 22 hours daily sleeping to conserve energy from their low-calorie eucalyptus leaf diet. Highly specialized to process toxic eucalyptus compounds that would kill most other mammals, they have gut microbiomes uniquely adapted for detoxification. Listed as Endangered in 2022, with populations decimated by chlamydia disease, habitat clearing, and climate change.