blue whale vs greater sea-spurrey

Balaenoptera musculus compared with Spergularia media

Key Differences

blue whale is Vulnerable while greater sea-spurrey is Least Concern.

Taxonomic Classification

Rank	blue whale	greater sea-spurrey
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Cetacea (Whales & Dolphins)	Caryophyllales (Caryophyllales)
Family	Balaenopteridae (Rorquals)	Caryophyllaceae
Genus	Balaenoptera (Rorquals)	Spergularia
Species	Balaenoptera musculus	Spergularia media

Conservation Status

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

greater sea-spurrey

LC — Least Concern

Physical Characteristics

Attribute	blue whale	greater sea-spurrey
Diet	Carnivore	—
Average Lifespan	90 years	—
Average Length	30.0 m	—
Average Weight	150.0 t	—

Habitat & Geographic Range

blue whale

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.

greater sea-spurrey

Habitat

Found across multiple habitat types including flooded grasslands and savannas, tropical and subtropical grasslands and savannas, and deserts and xeric shrublands within the Afrotropic biogeographic realm.

Range

Widely distributed across Africa (Angola, Namibia, South Africa), Europe (4 countries), North America (Canada), Oceania and the Pacific (Australia), and South America (Chile).

blue whale

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.