Eurasian beaver vs Komodo Dragon

Castor fiber compared with Varanus komodoensis

Key Differences

• Eurasian beaver is Vulnerable while Komodo Dragon is Endangered.

Taxonomic Classification

Rank	Eurasian beaver	Komodo Dragon
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Reptilia (爬虫類)
Order	Rodentia (ネズミ目)	Squamata (有鱗目)
Family	Castoridae (Beavers)	Varanidae (Monitor Lizards)
Genus	Castor (Beavers)	Varanus (Monitor Lizards)
Species	Castor fiber	Varanus komodoensis

Evolutionary Relationship

Eurasian beaver and Komodo Dragon share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Eurasian beaver

VU — Vulnerable

Komodo Dragon

EN — Endangered

Population: ~3.5K

Trend: Stable →

Physical Characteristics

Attribute	Eurasian beaver	Komodo Dragon
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	2.6 m
Average Weight	—	70.0 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.

Komodo Dragon

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 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

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

Eurasian beaver

ユーラシアビーバー（Castor fiber）はIUCNレッドリストで絶滅危惧II類（VU）に分類されています。個体群の減少と生息地への圧力の増大により、野生での絶滅危険度が高い状況に直面しています。

Komodo Dragon

コモドオオトカゲ（Varanus komodoensis）は現存する最大のトカゲである。インドネシアのいくつかの島にのみ生息している。