Canadian beaver vs Lǎohǔ

Castor canadensis compared with Panthera tigris

Key Differences

Canadian beaver is Not Evaluated while Lǎohǔ is Endangered.
Canadian beaver is herbivore while Lǎohǔ is carnivore.
Lǎohǔ is 8.8x heavier than Canadian beaver.
Lǎohǔ lives longer (20 years vs 15 years).

Taxonomic Classification

Rank	Canadian beaver	Lǎohǔ
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Rodentia (啮齿目)	Carnivora (食肉目)
Family	Castoridae (Beavers)	Felidae (Cats)
Genus	Castor (Beavers)	Panthera (Big Cats)
Species	Castor canadensis	Panthera tigris

Evolutionary Relationship

Canadian beaver and Lǎohǔ share a common ancestor at the Class level: Mammalia. (哺乳動物)

查看 Class: Mammalia

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Lǎohǔ

EN — Endangered

Population: ~4.5K

Trend: Increasing ↑

Physical Characteristics

Attribute	Canadian beaver	Lǎohǔ
Diet	Herbivore	Carnivore
Average Lifespan	15 years	20 years
Average Length	1.0 m	3.0 m
Average Weight	25.0 kg	220.0 kg

Habitat & Geographic Range

Canadian beaver

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).

Lǎohǔ

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 6 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia and Ecuador. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.