Argentine senna vs Buckelwal

Senna corymbosa compared with Megaptera novaeangliae

Key Differences

Argentine senna is Least Concern while Buckelwal is Vulnerable.

Taxonomic Classification

Rank	Argentine senna	Buckelwal
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Fabales (Legumes & Allies)	Cetacea (Whales & Dolphins)
Family	Fabaceae	Balaenopteridae (Rorquals)
Genus	Senna	Megaptera (Humpback Whales)
Species	Senna corymbosa	Megaptera novaeangliae

Conservation Status

Argentine senna

LC — Least Concern

Buckelwal

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Argentine senna	Buckelwal
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	15.0 m
Average Weight	—	30.0 t

Habitat & Geographic Range

Argentine senna

Habitat

Found across multiple habitat types including tropical and subtropical grasslands and savannas, flooded grasslands and savannas, and deserts and xeric shrublands spanning the Afrotropic and Palearctic realms.

Range

Widely distributed across Africa (Botswana, South Africa), Asia (India, Iraq), Europe (Portugal, Spain), North America (United States), Oceania and the Pacific (Australia), and South America (Brazil, Colombia).

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.

Argentine senna

The Argentine senna, Senna corymbosa, is a species. It is currently assessed as least concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical grasslands and savannas, flooded grasslands and savannas, and deserts and xeric shrublands spanning the Afrotropic and Palearctic realms.

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.