African elephant vs Cobweb weaver

Loxodonta africana compared with Steatoda nobilis

Key Differences

  • African elephant is Vulnerable while Cobweb weaver is Not Evaluated.

Taxonomic Classification

Rank African elephant Cobweb weaver
Kingdom same Animalia (動物) Animalia (動物)
Phylum Chordata (脊索動物) Arthropoda (節足動物)
Class Mammalia (哺乳類) Arachnida (クモガタ類)
Order Proboscidea (ゾウ目) Araneae (クモ目)
Family Elephantidae (Elephants) Theridiidae
Genus Loxodonta (African Elephants) Steatoda
Species Loxodonta africana Steatoda nobilis

Evolutionary Relationship

African elephant and Cobweb weaver share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

African elephant

VU — Vulnerable

Population: ~415.0K

Trend: Decreasing ↓

Cobweb weaver

NE — Not Evaluated

Physical Characteristics

Attribute African elephant Cobweb weaver
Diet Herbivore
Average Lifespan 65 years
Average Length 6.0 m
Average Weight 6.0 t

Habitat & Geographic Range

African elephant

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Kenya. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Cobweb weaver

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Widely distributed across Europe (7 countries), North America (United States), and South America (Ecuador).

African elephant

地球上最大の陸上動物であるアフリカゾウは体重7,000 kgに達し、サハラ以南のサバンナ、森林、湿地に生息する。成熟した雌が群れを率いる高度に知的な社会構造を持ち、超低周波音やうなり声、接触によって意思疎通する。木を引き倒したり水飲み場を掘ったり種子を散布したりすることで生態系を形成するエンジニア種だが、象牙の密猟や生息地の喪失により個体数は減少しており、危急(VU)とされている。

Cobweb weaver

The noble false widow (Steatoda nobilis) is a theridiid spider that has attracted considerable media attention in the British Isles and along the Atlantic coast of Europe due to its painful but rarely dangerous bite and its rapid range expansion facilitated by human activity. Originally native to the Canary Islands and Madeira, the species arrived in southern England during the 19th century, likely via banana shipments, and has since spread northward through Britain and westward into Ireland, while also establishing populations along the Iberian Peninsula and Atlantic France. Females are robust, with a dark brown carapace and a distinctive cream-colored pattern on the bulbous abdomen that varies between individuals; females reach 8.5–14 millimeters in body length, making this one of the larger European theridiids. The species constructs persistent, tangled cobwebs in sheltered locations outside buildings—under window ledges, in door frames, and in garden walls—as well as within homes in cooler seasons. It is a generalist predator, capturing insects and other invertebrates, and has been reported to occasionally subdue prey considerably larger than itself, including small lizards. Steatoda nobilis venom produces steatodism, which can cause localized pain, swelling, and in rare cases systemic symptoms. Its conservation status has not been formally assessed, but its expanding range demonstrates considerable resilience.

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