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The toxicity of the spider's venom is affected by the sex of the spider. The male funnel-web spider's venom appears to be six times more powerful than that of the female spider, based on minimum lethal dose determinations. In addition, different species of animals tend to react to the venom in various ways.
[15] [16] The Sydney funnel web spider Atrax robustus is the most common species of Atrax involved in human death from spider bites. [15] According to literature, only 10-15% of funnel web spider bites are venomous, however the toxicity of funnel web spider venom is high and chance of fatality is major. [15]
It has a highly toxic venom and is regarded (along with the Australian funnel-web spiders) as among the most dangerous spiders in the world. [6] Based on one of the few pharmacological studies performed in the 1970s, Phoneutria's venom toxicity was more virulent than both Atrax and Latrodectus.
Venom from the male Sydney funnel-web spider (A. robustus) is used in producing the antivenom, but it appears to be effective against the venom of all species of atracids. [29] Australian funnel-web spider antivenom has also been shown, in vitro, to reverse the effects of eastern mouse spider (Missulena bradleyi) venom. [30]
Only male Sydney funnel-web spiders have venom that can kill an adult, and 13 deaths have been attributed to the common Sydney funnel-web spider between 1927 and the early 1980s. There have been ...
The venom can be successfully treated with the antivenom for the related Sydney funnel-web spider (Atrax robustus). [3] The venom of the Darling Downs funnel-web spider becomes more toxic in early summer, after the spider has been fasting over the winter. [2] Male Darling Downs funnel-web spiders at this time are mobile and searching for a mate ...
Australian scientists have discovered a bigger, more venomous species of the Sydney funnel-web spider, one of the world's deadliest. The new funnel-web species has earned the nickname "Big Boy ...
Funnel-webs, whose most dangerous species lives in and around Sydney, are known for their deadly, fast-acting venom. Before the antivenom was introduced in 1981, 13 people died as a result of ...