Karoo button spider
The Karoo button spider is a venomous spider that lives only in South Africa. It belongs to the same group as the black widow spiders. Its bite causes very unpleasant symptoms, so it is worth knowing about if you live in or visit its range.1

怎麼認出牠
- It builds a three-dimensional web suspended in mid-air.1
- The web has loose, interconnected threads that lead to a tightly woven retreat.1
- Its retreat is inverted and cup-shaped, with pebbles built into the dome.1
常被誤認為: Four of the six Latrodectus species found in southern Africa are known as black button or black widow spiders, so common names alone cannot tell them apart. Its distinctive web and pebble-domed retreat help to recognise this species.1
毒液力量
咬的時候,毒液會從毒牙或牙齒出來。
牠的毒液有什麼作用?
Like all Latrodectus species, it has a neurotoxic venom, which attacks the nerves. The venom acts on nerve endings and causes latrodectism, a condition with very unpleasant symptoms.1
牠對人有多危險?
對人的危險: 疼痛可能會非常痛,但幾乎從來不會很嚴重。Its bite causes latrodectism, which brings very unpleasant symptoms in humans.1
注意安全
- 絕對不要碰、抓或捉弄野生動物,就算是很小的動物,就算牠看起來在睡覺或已經死了也一樣。
- 給牠空間。如果遇到了,保持冷靜,慢慢往後退,讓牠自己離開。
- 如果被牠咬了:保持冷靜,保持不動,打緊急電話(112、000、911)或趕快去醫院。記住牠的樣子,有照片會很有幫助。
牠不是想來抓你。牠用毒液來捕捉食物或保護自己,而且牠更想躲起來。 更多安全知識
牠有多大?
牠有多長?
大約跟一根迴紋針一樣長Karoo button spider 跟「你」比起來有多大?
只是在你的瀏覽器裡做算術。什麼都不會儲存,也不會傳送到任何地方。
牠有多快?
小知識
知識的出處
- Latrodectus karrooensis (Wikipedia (CC BY-SA 4.0))
- Latrodectus karrooensis (iNaturalist): 名稱和分類。
- Venom Wiki: 危險等級、一般大小和速度估計都是我們自己定的。看看我們是怎麼算出來的: 我們怎麼評估危險.
這一頁的每個知識都有一個數字,指向它的出處。如果我們寫錯了,對不起,我們是動物迷,不是科學期刊。寫信到 [email protected] 告訴我們,我們會修正。
咬
如果牠咬人