description Sydney Funnel-web Spider (Atrax robustus) Overview
The Sydney funnel-web spider Atrax robustus is a large, aggressive spider native to eastern Australia. It’s notable due to its potent venom, which can cause severe symptoms including myolysis and neurological effects. This medically significant species is particularly dangerous to humans and is most concerning for individuals living in areas where it resides, as well as medical professionals involved in antivenom production and treatment.
help Sydney Funnel-web Spider (Atrax robustus) FAQ
Has anyone died from a Sydney funnel-web spider bite since antivenom was developed?
No deaths have been recorded from Sydney funnel-web spider bites since the antivenom program was introduced in 1981. Prior to the antivenom, at least 13 fatalities had been attributed to the species.
Where in Australia do Sydney funnel-web spiders live?
Atrax robustus is found in a region spanning roughly 160 kilometers around Sydney, within New South Wales. They prefer moist, sheltered habitats such as rainforest gullies and suburban gardens where they can burrow into humid soil.
Why are male Sydney funnel-web spiders more dangerous than females?
Male Atrax robustus produce venom that is reportedly up to six times more toxic than that of females, containing a potent neurotoxin called delta-hexatoxin that uniquely affects primates. Males also wander in search of mates during warmer months, dramatically increasing the likelihood of human encounters.
What should you do if bitten by a Sydney funnel-web spider?
A funnel-web bite is a medical emergency requiring immediate application of a pressure immobilization bandage and a call to Australian emergency services on 000. The victim should remain completely still to slow venom movement while awaiting ambulance transport for antivenom administration.
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