Alaskan Brook Lamprey vs Ballena jorobada

Lethenteron alaskense compared with Megaptera novaeangliae

Key Differences

• Alaskan Brook Lamprey is Data Deficient while Ballena jorobada is Vulnerable.

Taxonomic Classification

Rank	Alaskan Brook Lamprey	Ballena jorobada
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Petromyzonti (Petromyzonti)	Mammalia (mamíferos)
Order	Petromyzontiformes (Hyperoartia)	Cetacea (Whales & Dolphins)
Family	Petromyzontidae	Balaenopteridae (Rorquals)
Genus	Lethenteron	Megaptera (Humpback Whales)
Species	Lethenteron alaskense	Megaptera novaeangliae

Evolutionary Relationship

Alaskan Brook Lamprey and Ballena jorobada share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Alaskan Brook Lamprey

DD — Data Deficient

Ballena jorobada

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Alaskan Brook Lamprey	Ballena jorobada
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	15.0 m
Average Weight	—	30.0 t

Habitat & Geographic Range

Alaskan Brook Lamprey

Ballena jorobada

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Vulnerable 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.

Ballena jorobada

Entre las ballenas grandes más acrobáticas, las ballenas jorobadas son célebres por sus complejos y estremecedores cantos entonados por los machos durante la temporada reproductiva, que pueden durar horas y evolucionar con el tiempo. Alcanzando 16 metros y 30 toneladas, realizan las migraciones más largas de cualquier mamífero. Se encuentran en todos los océanos y se alimentan de krill y peces pequeños mediante la técnica cooperativa de pesca con red de burbujas.