blue whale vs Common Iora

Balaenoptera musculus compared with Aegithina tiphia

Key Differences

• blue whale is Vulnerable while Common Iora is Least Concern.

Taxonomic Classification

Rank	blue whale	Common Iora
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Passeriformes (Songbirds)
Family	Balaenopteridae (Rorquals)	Aegithinidae
Genus	Balaenoptera (Rorquals)	Aegithina
Species	Balaenoptera musculus	Aegithina tiphia

Evolutionary Relationship

blue whale and Common Iora share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Common Iora

LC — Least Concern

Physical Characteristics

Attribute	blue whale	Common Iora
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.

Common Iora

Habitat

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

Range

Found in Norway.

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.

Common Iora

<em>Aegithina tiphia</em>, commonly known as the common iora, is a small passerine bird in the family Aegithinidae. It is classified as Least Concern on the IUCN Red List. The species is recorded in Norway and occupies a variety of aerial, terrestrial, and aquatic environmental zones, reflecting its use of diverse habitats including gardens, forests, mangroves, and scrubland across South and Southeast Asia. The common iora is notable for the striking breeding plumage of males, which display bright yellow and black coloration. It typically forages in tree canopies, gleaning insects from foliage. Diet information beyond general insectivory is not available in current records. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway