Rauhhai vs Blauwal

Rhincodon typus compared with Balaenoptera musculus

Key Differences

• Rauhhai is Endangered while Blauwal is Vulnerable.
• Rauhhai is omnivore while Blauwal is carnivore.
• Blauwal is 7.5x heavier than Rauhhai.
• Rauhhai lives longer (100 years vs 90 years).

Taxonomic Classification

Rank	Rauhhai	Blauwal
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Chondrichthyes (Knorpelfische)	Mammalia (Säugetiere)
Order	Lamniformes (Makrelenhaiartige)	Cetacea (Whales & Dolphins)
Family	Rhincodontidae (Whale Sharks)	Balaenopteridae (Rorquals)
Genus	Rhincodon (Whale Sharks)	Balaenoptera (Rorquals)
Species	Rhincodon typus	Balaenoptera musculus

Evolutionary Relationship

Rauhhai and Blauwal share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Rauhhai

EN — Endangered

Trend: Decreasing ↓

Blauwal

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Rauhhai	Blauwal
Diet	Omnivore	Carnivore
Average Lifespan	100 years	90 years
Average Length	12.0 m	30.0 m
Average Weight	20.0 t	150.0 t

Habitat & Geographic Range

Rauhhai

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Chile, Portugal, Taiwan, and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Blauwal

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.

Rauhhai

The world's largest fish, whale sharks can exceed 12 meters and 20 tonnes, inhabiting tropical and warm temperate oceans worldwide. Despite their massive size, they are harmless filter feeders, consuming plankton, fish eggs, and small fish by swimming open-mouthed through prey-dense water. They undertake vast seasonal migrations following plankton blooms. Endangered due to fishing, boat strikes, and the live fin trade, with population declining by approximately 50% over the past 75 years.

Blauwal

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.

Shared Countries

Both species can be found in 2 countries:

🇵🇹 Portugal 🇹🇼 Taiwan