Common Ostrich vs Eurasian beaver

Struthio camelus compared with Castor fiber

Key Differences

• Common Ostrich is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Common Ostrich	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Struthioniformes (Struthioniformes)	Rodentia (Rodents)
Family	Struthionidae	Castoridae (Beavers)
Genus	Struthio	Castor (Beavers)
Species	Struthio camelus	Castor fiber

Evolutionary Relationship

Common Ostrich and Eurasian beaver share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Ostrich

LC — Least Concern

Trend: Stable →

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Common Ostrich	Eurasian beaver
Diet	Omnivore	—
Average Lifespan	45 years	—
Average Length	2.1 m	—
Average Weight	100.0 kg	—

Habitat & Geographic Range

Common Ostrich

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 4 distinct biome types within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (4 countries), Europe (5 countries), and South America (Colombia, Ecuador, Peru).

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.

Common Ostrich

The world's largest and heaviest living bird, common ostriches stand up to 2.8 meters tall and weigh 156 kg, inhabiting savannas and semi-arid plains of Africa. Flightless, they compensate with powerful long legs capable of delivering lethal kicks and sustaining running speeds of 70 km/h — the fastest of any bird. Their large eyes are the biggest of any land vertebrate. Ostriches lay the largest eggs of any living bird.

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.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway