Alaskan Brook Lamprey vs gray wolf

Lethenteron alaskense compared with Canis lupus

Key Differences

• Alaskan Brook Lamprey is Data Deficient while gray wolf is Critically Endangered.

Taxonomic Classification

Rank	Alaskan Brook Lamprey	gray wolf
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Petromyzonti (七鳃鳗纲)	Mammalia (哺乳動物)
Order	Petromyzontiformes (七鰓鰻目)	Carnivora (食肉目)
Family	Petromyzontidae	Canidae (Dogs & Wolves)
Genus	Lethenteron	Canis (Dogs & Wolves)
Species	Lethenteron alaskense	Canis lupus

Evolutionary Relationship

Alaskan Brook Lamprey and gray wolf share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

Alaskan Brook Lamprey

DD — Data Deficient

gray wolf

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

Physical Characteristics

Attribute	Alaskan Brook Lamprey	gray wolf
Diet	—	Carnivore
Average Lifespan	—	13 years
Average Length	—	1.6 m
Average Weight	—	45.0 kg

Habitat & Geographic Range

Alaskan Brook Lamprey

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.

Alaskan Brook Lamprey

The Alaskan Brook Lamprey (Lethenteron alaskense) is a species in the genus Lethenteron. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment.

gray wolf

灰狼是分布最广的野生犬科动物，分布范围从北美横跨欧亚大陆，栖息于冻原、森林和草原等多种生境。高度社会化的动物，以由占优势的繁殖对领导的家族群体生活。作为关键捕食者，狼调节猎物种群并深刻影响生态系统结构，黄石公园的重引入项目对此有充分证明。曾遭到严重迫害，但目前许多地区的种群正在恢复。