Canadian beaver vs Long-tailed Sylph

Castor canadensis compared with Aglaiocercus kingii

Key Differences

• Canadian beaver is Not Evaluated while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Long-tailed Sylph
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Mammalia (lớp Thú)	Aves (chim)
Order	Rodentia (Bộ Gặm nhấm)	Apodiformes (Bộ Yến)
Family	Castoridae (Beavers)	Trochilidae
Genus	Castor (Beavers)	Aglaiocercus
Species	Castor canadensis	Aglaiocercus kingii

Evolutionary Relationship

Canadian beaver and Long-tailed Sylph share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Long-tailed Sylph
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).

Long-tailed Sylph

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

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.

Long-tailed Sylph

One of the most strikingly ornamented hummingbirds, male long-tailed sylphs have iridescent green plumage and dramatically elongated, ribbon-like outer tail feathers reaching up to 22 cm — over three times the body length. Found in Andean cloud forests of Colombia and Venezuela, they inhabit humid montane forest between 1,400–2,800 meters elevation. Males perform elaborate display flights to attract females. Their extravagant tails are a classic example of sexual selection via female preference.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway