Brown Widow vs Buckelwal

Latrodectus geometricus compared with Megaptera novaeangliae

Key Differences

• Brown Widow is Not Evaluated while Buckelwal is Vulnerable.

Taxonomic Classification

Rank	Brown Widow	Buckelwal
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Arthropoda (สัตว์ขาปล้อง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Arachnida (แมง)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Araneae (แมงมุม)	Cetacea (Whales & Dolphins)
Family	Theridiidae	Balaenopteridae (Rorquals)
Genus	Latrodectus	Megaptera (Humpback Whales)
Species	Latrodectus geometricus	Megaptera novaeangliae

Evolutionary Relationship

Brown Widow and Buckelwal share a common ancestor at the Kingdom level: Animalia. (สัตว์)

Conservation Status

Brown Widow

NE — Not Evaluated

Buckelwal

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Brown Widow	Buckelwal
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	15.0 m
Average Weight	—	30.0 t

Habitat & Geographic Range

Brown Widow

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Peru).

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.

Brown Widow

The Brown Widow (Latrodectus geometricus) is a species in the genus Latrodectus. Typically found in terrestrial habitats from forests to deserts. Its geographic range includes widely distributed across africa (south africa), asia (japan), europe (7 countries), north america (united states), and south america (colombia, ecuador, peru).

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 5 countries:

🇧🇪 Belgium 🇨🇴 Colombia 🇪🇨 Ecuador 🇳🇴 Norway 🇸🇪 Sweden