Pagaza australiana vs Ballena azul

Gelochelidon macrotarsa compared with Balaenoptera musculus

Key Differences

• Pagaza australiana is Least Concern while Ballena azul is Vulnerable.

Taxonomic Classification

Rank	Pagaza australiana	Ballena azul
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Aves (Birds)	Mammalia (mamíferos)
Order	Charadriiformes (Charadriiformes)	Cetacea (Whales & Dolphins)
Family	Laridae	Balaenopteridae (Rorquals)
Genus	Gelochelidon	Balaenoptera (Rorquals)
Species	Gelochelidon macrotarsa	Balaenoptera musculus

Evolutionary Relationship

Pagaza australiana and Ballena azul share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Pagaza australiana

LC — Least Concern

Ballena azul

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Pagaza australiana	Ballena azul
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

Pagaza australiana

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

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.

Pagaza australiana

The Australian Tern (Gelochelidon macrotarsa) is a species in the genus Gelochelidon. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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.