Eurasian beaver vs koala

Castor fiber compared with Phascolarctos cinereus

Taxonomic Classification

Rank	Eurasian beaver	koala
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum same	Chordata (रज्जुकी)	Chordata (रज्जुकी)
Class same	Mammalia (स्तनधारी)	Mammalia (स्तनधारी)
Order	Rodentia (कृंतक)	Diprotodontia (डाएप्रोटोडोंटिया)
Family	Castoridae (Beavers)	Phascolarctidae (Koalas)
Genus	Castor (Beavers)	Phascolarctos (Koalas)
Species	Castor fiber	Phascolarctos cinereus

Evolutionary Relationship

Eurasian beaver and koala share a common ancestor at the Class level: Mammalia. (स्तनधारी)

View Class: Mammalia

Conservation Status

Eurasian beaver

VU — Vulnerable

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Eurasian beaver	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Eurasian beaver

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Eurasian beaver

Eurasian beaver (Castor fiber) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

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.