Eurasian beaver vs Ontong Java Flying Fox

Castor fiber compared with Pteropus howensis

Key Differences

• Eurasian beaver is Vulnerable while Ontong Java Flying Fox is Critically Endangered.

Taxonomic Classification

Rank	Eurasian beaver	Ontong Java Flying Fox
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order	Rodentia (грызуны)	Chiroptera (рукокрылые)
Family	Castoridae (Beavers)	Pteropodidae (Fruit Bats)
Genus	Castor (Beavers)	Pteropus (Flying Foxes)
Species	Castor fiber	Pteropus howensis

Evolutionary Relationship

Eurasian beaver and Ontong Java Flying Fox share a common ancestor at the Class level: Mammalia. (млекопитающие)

Conservation Status

Eurasian beaver

VU — Vulnerable

Ontong Java Flying Fox

CR — Critically Endangered

Physical Characteristics

Attribute	Eurasian beaver	Ontong Java Flying Fox
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

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.

Ontong Java Flying Fox

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.