Cobweb weaver vs gray wolf

Steatoda nobilis compared with Canis lupus

Key Differences

• Cobweb weaver is Not Evaluated while gray wolf is Critically Endangered.

Taxonomic Classification

Rank	Cobweb weaver	gray wolf
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Arthropoda (节肢动物门)	Chordata (脊索动物门)
Class	Arachnida (蛛形纲)	Mammalia (哺乳動物)
Order	Araneae (蜘蛛目)	Carnivora (食肉目)
Family	Theridiidae	Canidae (Dogs & Wolves)
Genus	Steatoda	Canis (Dogs & Wolves)
Species	Steatoda nobilis	Canis lupus

Evolutionary Relationship

Cobweb weaver and gray wolf share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Cobweb weaver

NE — Not Evaluated

gray wolf

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

Physical Characteristics

Attribute	Cobweb weaver	gray wolf
Diet	—	Carnivore
Average Lifespan	—	13 years
Average Length	—	1.6 m
Average Weight	—	45.0 kg

Habitat & Geographic 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).

gray wolf

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, deserts and xeric shrublands, and tropical and subtropical dry broadleaf forests, among 13 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Seychelles), Asia (Japan), Europe (5 countries), North America (7 countries), Oceania and the Pacific (Marshall Islands, Vanuatu), and South America (5 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

gray wolf

灰狼是分布最广的野生犬科动物，分布范围从北美横跨欧亚大陆，栖息于冻原、森林和草原等多种生境。高度社会化的动物，以由占优势的繁殖对领导的家族群体生活。作为关键捕食者，狼调节猎物种群并深刻影响生态系统结构，黄石公园的重引入项目对此有充分证明。曾遭到严重迫害，但目前许多地区的种群正在恢复。

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇪🇨 Ecuador 🇺🇸 United States