Canadian beaver vs

Castor canadensis compared with Comatricha longipila

Taxonomic Classification

Rank	Canadian beaver
Kingdom	Animalia (Animals)	Protozoa (protozoa)
Phylum	Chordata (Chordates)	Mycetozoa
Class	Mammalia (Mammals)	Myxomycetes (Myxomycetes)
Order	Rodentia (Rodents)	Stemonitidales
Family	Castoridae (Beavers)	Stemonitidaceae
Genus	Castor (Beavers)	Comatricha
Species	Castor canadensis	Comatricha longipila

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

NE — Not Evaluated

Physical Characteristics

Attribute	Canadian beaver
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).

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Norway, 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.

<em>Comatricha longipila</em> is a myxomycete in the order Stemonitidales, class Myxomycetes, belonging to the species-rich genus <em>Comatricha</em>. The species name reflects a taxonomic characteristic used in its identification, as capillitial and spore features are the primary diagnostic traits for distinguishing species within this genus. <em>C. longipila</em> inhabits decaying woody substrates and moist organic debris in forested and shaded environments. It passes through a conspicuous plasmodial stage in which a macroscopic, multinucleate mass of cytoplasm moves across and through substrates in search of bacterial and fungal food sources. The species subsequently forms fruiting bodies that release spores for aerial dispersal. Like all myxomycetes, this organism does not possess conventional physical traits such as body length or mass, and no quantitative biological data are recorded for this species. It has not been assessed by the IUCN.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden