Amerikanisches Neunauge vs Blauwal

Lethenteron appendix compared with Balaenoptera musculus

Key Differences

• Amerikanisches Neunauge is Least Concern while Blauwal is Vulnerable.

Taxonomic Classification

Rank	Amerikanisches Neunauge	Blauwal
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Petromyzonti (Petromyzonti)	Mammalia (Säugetiere)
Order	Petromyzontiformes (Neunaugen)	Cetacea (Whales & Dolphins)
Family	Petromyzontidae	Balaenopteridae (Rorquals)
Genus	Lethenteron	Balaenoptera (Rorquals)
Species	Lethenteron appendix	Balaenoptera musculus

Evolutionary Relationship

Amerikanisches Neunauge and Blauwal share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Amerikanisches Neunauge

LC — Least Concern

Blauwal

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Amerikanisches Neunauge	Blauwal
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

Amerikanisches Neunauge

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States.

Blauwal

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 (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Amerikanisches Neunauge

The American Brook Lamprey (Lethenteron appendix) is a species in the genus Lethenteron. It is currently classified as Least Concern on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.

Blauwal

The largest animal ever known to have lived on Earth, blue whales can reach 33 meters and 200 tonnes — their hearts alone weigh as much as a small car. Found in all oceans, they migrate between polar feeding grounds and tropical breeding areas. Filter feeders consuming up to 4 tonnes of krill daily. Endangered, with global populations estimated at 10,000–25,000 after near-extinction from 20th-century whaling.