gray wolf vs Klamath Lamprey

Canis lupus compared with Entosphenus similis

Key Differences

• gray wolf is Critically Endangered while Klamath Lamprey is Near Threatened.

Taxonomic Classification

Rank	gray wolf	Klamath Lamprey
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Petromyzonti (Petromyzonti)
Order	Carnivora (สัตว์กินเนื้อ)	Petromyzontiformes (ปลาแลมป์เพรย์)
Family	Canidae (Dogs & Wolves)	Petromyzontidae
Genus	Canis (Dogs & Wolves)	Entosphenus
Species	Canis lupus	Entosphenus similis

Evolutionary Relationship

gray wolf and Klamath Lamprey share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

gray wolf

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

Klamath Lamprey

NT — Near Threatened

Physical Characteristics

Attribute	gray wolf	Klamath Lamprey
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.

Klamath Lamprey

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.