Ballena azul vs common pelican’s foot

Balaenoptera musculus compared with Aporrhais pespelecani

Key Differences

• Ballena azul is Vulnerable while common pelican’s foot is Least Concern.

Taxonomic Classification

Rank	Ballena azul	common pelican’s foot
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Mollusca (moluscos)
Class	Mammalia (mamíferos)	Gastropoda (gastrópodos)
Order	Cetacea (Whales & Dolphins)	Littorinimorpha (Littorinimorpha)
Family	Balaenopteridae (Rorquals)	Aporrhaidae
Genus	Balaenoptera (Rorquals)	Aporrhais
Species	Balaenoptera musculus	Aporrhais pespelecani

Evolutionary Relationship

Ballena azul and common pelican’s foot share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Ballena azul

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

common pelican’s foot

LC — Least Concern

Physical Characteristics

Attribute	Ballena azul	common pelican’s foot
Diet	Carnivore	—
Average Lifespan	90 years	—
Average Length	30.0 m	—
Average Weight	150.0 t	—

Habitat & Geographic Range

Ballena azul

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.

common pelican’s foot

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found across Asia (Turkey) and Europe (5 countries).

Ballena azul

El animal más grande que se conoce haya vivido en la Tierra; las ballenas azules pueden alcanzar 33 metros y 200 toneladas — sus corazones solos pesan tanto como un automóvil pequeño. Se encuentran en todos los océanos y migran entre las zonas de alimentación polares y las áreas de reproducción tropicales. Son filtradoras que consumen hasta 4 toneladas de kril al día. En peligro de extinción, con poblaciones globales estimadas entre 10.000 y 25.000 tras casi extinguirse por la caza de ballenas en el siglo XX.

common pelican’s foot

<em>Aporrhais pespelecani</em>, commonly known as the common pelican's foot, is a marine gastropod mollusk belonging to the family Aporrhaidae. This distinctive snail is named for its unusual shell shape, which features a flared outer lip with finger-like projections resembling a pelican's webbed foot. It inhabits sandy and muddy substrates of shallow coastal seas, typically found at depths ranging from the intertidal zone to several hundred metres. The species is distributed across temperate European waters, with confirmed records from Belgium, Denmark, Norway, and Sweden, as well as Turkey, indicating a range spanning the northeastern Atlantic and parts of the Mediterranean and Black Sea. <em>Aporrhais pespelecani</em> typically buries itself partially in soft sediments, where it feeds on organic detritus and microalgae. The species is assessed as Least Concern on the IUCN Red List, reflecting its relatively wide distribution and absence of major threats. Biological traits such as average lifespan, body size, and detailed dietary composition remain poorly documented in the scientific literature. Populations are generally considered stable, though localised habitat degradation from coastal development and trawling may pose risks in certain parts of its range.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden