gray wolf vs Long-tailed Weasel

Canis lupus compared with Mustela frenata

Key Differences

• gray wolf is Critically Endangered while Long-tailed Weasel is Least Concern.

Taxonomic Classification

Rank	gray wolf	Long-tailed Weasel
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order same	Carnivora (สัตว์กินเนื้อ)	Carnivora (สัตว์กินเนื้อ)
Family	Canidae (Dogs & Wolves)	Mustelidae (Weasels & Otters)
Genus	Canis (Dogs & Wolves)	Mustela
Species	Canis lupus	Mustela frenata

Evolutionary Relationship

gray wolf and Long-tailed Weasel share a common ancestor at the Order level: Carnivora. (สัตว์กินเนื้อ)

Conservation Status

gray wolf

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

Long-tailed Weasel

LC — Least Concern

Physical Characteristics

Attribute	gray wolf	Long-tailed Weasel
Diet	Carnivore	—
Average Lifespan	13 years	—
Average Length	1.6 m	—
Average Weight	45.0 kg	—

Habitat & Geographic Range

gray wolf

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, deserts and xeric shrublands, and tropical and subtropical dry broadleaf forests, among 13 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Seychelles), Asia (Japan), Europe (5 countries), North America (7 countries), Oceania and the Pacific (Marshall Islands, Vanuatu), and South America (5 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Long-tailed Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, United States, and Venezuela.

gray wolf

The most widely distributed wild canid, gray wolves range from North America across Eurasia in diverse habitats including tundra, forests, and grasslands. Highly social animals living in family packs led by a dominant breeding pair. As keystone predators, wolves regulate prey populations and profoundly shape ecosystem structure, as demonstrated by their reintroduction in Yellowstone. Once heavily persecuted, populations are recovering in many regions.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇺🇸 United States