Canadian beaver vs thin-necked bladderworm

Castor canadensis compared with Taenia hydatigena

Taxonomic Classification

Rank	Canadian beaver	thin-necked bladderworm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Platyhelminthes (Platyhelminthes)
Class	Mammalia (Mammals)	Cestoda (Cestoda)
Order	Rodentia (Rodents)	Cyclophyllidea (Cyclophyllidea)
Family	Castoridae (Beavers)	Taeniidae
Genus	Castor (Beavers)	Taenia
Species	Castor canadensis	Taenia hydatigena

Evolutionary Relationship

Canadian beaver and thin-necked bladderworm share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

thin-necked bladderworm

NE — Not Evaluated

Physical Characteristics

Attribute	Canadian beaver	thin-necked bladderworm
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 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).

thin-necked bladderworm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden.

Canadian beaver

The largest rodent in North America, Canadian beavers weigh up to 32 kg and are master ecosystem engineers inhabiting rivers, lakes, and wetlands across Canada and the northern United States. By felling trees and constructing dams up to hundreds of meters long, beavers create ponds that provide habitat for hundreds of species. Their lodges and canals transform entire watersheds. Once nearly hunted to extinction for their fur, beaver populations have recovered strongly.

Shared Countries

Both species can be found in 3 countries:

🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden