Sydney Funnel-web Spider Male Sydney funnel-web spiders are Australia's most dangerous spider. These aggressive spiders grab onto their victims and bite several times, injecting a very poisonous venom. Some people have died from the bite of these spiders, but since 1980 when a Sydney funnel-web spider antivenom was invented, no-one has died from the bite of a Sydney funnel-web spider.
Sydney Funnel Web Spider - There have been only 14 recorded deaths from this spider's bite. ALL deaths between 1927-1980 until the antivenom was introduced in 1980. In the off chance you should be bitten, Call Australia's Emergency Number 000...quickly state "Ambulance required" ...quickly state "at such and such address"... quickly repeat address, then give more info about your emergency.
The Funnel Web is one of Australia's deadliest animals, with a venom that is packed with at least 40 different toxic proteins. A bite from a Funnel Web causes massive electrical over-load in the body's nervous system. Finally, fatalities occur from either heart attack or a pulmonary oedema, where the capillaries around the lungs begin to leak fluid and the patient effectively drowns. Death can come as quickly as two hours after a bite if no medical treatment is sought.
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The Sydney funnel-web spider (Atrax robustus) is a species of Australian funnel-web spider usually found within a 100 km (62 mi) radius of Sydney, New South Wales, Australia. It is a venomous spider with a bite capable of causing serious injury or death in humans if left untreated. - http://myscienceacademy.org/2013/02/15/5-most-dangerous-spiders/