blue whale vs Four-toed Hedgehog

Balaenoptera musculus compared with Atelerix albiventris

Key Differences

blue whale is Vulnerable while Four-toed Hedgehog is Least Concern.

Taxonomic Classification

Rank	blue whale	Four-toed Hedgehog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Mammalia (mamíferos)	Mammalia (mamíferos)
Order	Cetacea (Whales & Dolphins)	Erinaceomorpha (Erinaceomorpha)
Family	Balaenopteridae (Rorquals)	Erinaceidae
Genus	Balaenoptera (Rorquals)	Atelerix
Species	Balaenoptera musculus	Atelerix albiventris

Evolutionary Relationship

blue whale and Four-toed Hedgehog share a common ancestor at the Class level: Mammalia. (mamíferos)

View Class: Mammalia

Conservation Status

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Four-toed Hedgehog

LC — Least Concern

Physical Characteristics

Attribute	blue whale	Four-toed Hedgehog
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.

Four-toed Hedgehog

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Ecuador and Spain.

blue whale

O maior animal que já viveu na Terra, as baleias-azuis podem atingir 33 metros e 200 toneladas — seus corações sozinhos pesam tanto quanto um carro pequeno. Encontradas em todos os oceanos, migram entre áreas de alimentação polares e áreas de reprodução tropicais. Filtradores que consomem até 4 toneladas de krill diariamente. Em perigo, com populações globais estimadas em 10.000–25.000 após a quase extinção causada pela caça baleeira no século XX.