Cobweb weaver vs jaguar
Steatoda nobilis compared with Panthera onca
Key Differences
- Cobweb weaver is Not Evaluated while jaguar is Near Threatened.
Taxonomic Classification
| Rank | Cobweb weaver | jaguar |
|---|---|---|
| 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 | Felidae (Cats) |
| Genus | Steatoda | Panthera (Big Cats) |
| Species | Steatoda nobilis | Panthera onca |
Evolutionary Relationship
Cobweb weaver and jaguar share a common ancestor at the Kingdom level: Animalia. (动物界)
Conservation Status
Cobweb weaver
NE — Not Evaluatedjaguar
NT — Near ThreatenedPopulation: ~64.0K
Trend: Decreasing ↓
Physical Characteristics
| Attribute | Cobweb weaver | jaguar |
|---|---|---|
| Diet | — | Carnivore |
| Average Lifespan | — | 15 years |
| Average Length | — | 1.9 m |
| Average Weight | — | 100.0 kg |
Habitat & Geographic Range
Cobweb weaver
Typically found in terrestrial habitats from forests to deserts.
Widely distributed across Europe (7 countries), North America (United States), and South America (Ecuador).
jaguar
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 6 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.
Distributed across Colombia, Ecuador, and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.
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.
jaguar
美洲最大的猫科动物,体重可达100千克,体型粗壮健硕,毛皮具有独特的玫瑰形花纹。分布于墨西哥至南美洲,亚马逊和潘塔纳尔是其主要栖息地。美洲豹是出色的游泳健将和顶级捕食者,在调节猎物种群方面发挥关键作用。由于森林砍伐导致栖息地缩减,被列为近危(NT)物种。
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