Buckelwal vs onyx slippersnail

Megaptera novaeangliae compared with Crepidula onyx

Key Differences

• Buckelwal is Vulnerable while onyx slippersnail is Not Evaluated.

Taxonomic Classification

Rank	Buckelwal	onyx slippersnail
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum	Chordata (रज्जुकी)	Mollusca (मोलस्का)
Class	Mammalia (स्तनधारी)	Gastropoda (उदरपाद)
Order	Cetacea (Whales & Dolphins)	Littorinimorpha (Littorinimorpha)
Family	Balaenopteridae (Rorquals)	Calyptraeidae
Genus	Megaptera (Humpback Whales)	Crepidula
Species	Megaptera novaeangliae	Crepidula onyx

Evolutionary Relationship

Buckelwal and onyx slippersnail share a common ancestor at the Kingdom level: Animalia. (प्राणी)

Conservation Status

Buckelwal

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

onyx slippersnail

NE — Not Evaluated

Physical Characteristics

Attribute	Buckelwal	onyx slippersnail
Diet	Carnivore	—
Average Lifespan	50 years	—
Average Length	15.0 m	—
Average Weight	30.0 t	—

Habitat & Geographic Range

Buckelwal

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 (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

onyx slippersnail

Habitat

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

Range

Widely distributed across Asia (China, Japan, South Korea), Europe (Norway, Sweden), and South America (Chile).

Buckelwal

Among the most acrobatic of the great whales, humpback whales are renowned for their complex, haunting songs sung by males during breeding season — some lasting hours and evolving over time. Reaching 16 meters and 30 tonnes, they undertake the longest migrations of any mammal. Found in all oceans, humpbacks feed on krill and small fish using cooperative bubble-net feeding. Populations have largely recovered from historic whaling.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden