gray wolf vs least weasel

Canis lupus compared with Mustela nivalis

Key Differences

gray wolf is Critically Endangered while least weasel is Near Threatened.

Taxonomic Classification

Rank	gray wolf	least weasel
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order same	Carnivora (ネコ目)	Carnivora (ネコ目)
Family	Canidae (Dogs & Wolves)	Mustelidae (Weasels & Otters)
Genus	Canis (Dogs & Wolves)	Mustela
Species	Canis lupus	Mustela nivalis

Evolutionary Relationship

gray wolf and least weasel share a common ancestor at the Order level: Carnivora. (ネコ目)

表示 Order: Carnivora

Conservation Status

gray wolf

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

least weasel

NT — Near Threatened

Physical Characteristics

Attribute	gray wolf	least 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.

least weasel

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 4 distinct biome types spanning the Australasia and Oceanian and Palearctic realms.

Range

Widely distributed across Africa (Sao Tome and Principe), Asia (Cyprus), Europe (11 countries), and Oceania and the Pacific (New Zealand). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

gray wolf

最も広い分布域を持つ野生のイヌ科動物であるハイイロオオカミは、北アメリカからユーラシアにかけてのツンドラ、森林、草原などの多様な生息地に分布します。優位な繁殖ペアに率いられた家族単位の群れで生活する高度に社会的な動物です。キーストーン捕食者として獲物個体群を調整し、生態系の構造を根本的に形成することは、イエローストーンでの再導入により実証されています。かつて激しく迫害されましたが、多くの地域で個体群は回復しつつあります。