Canadian beaver vs Common Least Skipper

Castor canadensis compared with Ancyloxypha numitor

Key Differences

• Canadian beaver is Not Evaluated while Common Least Skipper is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	Common Least Skipper
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Arthropoda (节肢动物门)
Class	Mammalia (哺乳動物)	Insecta (昆蟲綱)
Order	Rodentia (啮齿目)	Lepidoptera (鱗翅目)
Family	Castoridae (Beavers)	Hesperiidae
Genus	Castor (Beavers)	Ancyloxypha
Species	Castor canadensis	Ancyloxypha numitor

Evolutionary Relationship

Canadian beaver and Common Least Skipper share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Common Least Skipper

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	Common Least Skipper
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).

Common Least Skipper

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada and United States.

Canadian beaver

北美最大的啮齿动物加拿大河狸体重可达32公斤，是栖息于加拿大和美国北部河流、湖泊和湿地的杰出生态系统工程师。通过伐木和建造可达数百米的水坝形成水塘，为数百种物种提供生境。其巢穴和运河改变了整个流域。曾因毛皮贸易被猎杀至濒临灭绝，但种群已大幅恢复。

Common Least Skipper

The Common Least Skipper (<em>Ancyloxypha numitor</em>) is a small butterfly in the family Hesperiidae, classified as Least Concern on the IUCN Red List. It is native to Canada and the United States, where it typically inhabits virtually all terrestrial and freshwater habitats within its range, showing a particular affinity for moist, grassy areas near water. The species is among the smallest skippers in North America, characterized by orange and brown wing coloration and a rapid, low-flying flight pattern close to vegetation. Adults typically nectar on small flowers while larvae feed on grasses, particularly those in wet meadows, marshes, stream margins, and disturbed grassy areas. The Common Least Skipper is frequently observed in wetland margins, wet prairies, and roadsides with rank grass growth. Its wide distribution across North America and habitat generalism across moist grassland and wetland types support its stable population and Least Concern conservation status. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States