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Phoneutria nigriventer, the Brazilian wandering spider (a ctenid spider) is a large brown spider similar to North American wolf spiders in appearance, although somewhat larger. 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 ]
The Sydney funnel-web spider (Atrax robustus) is a species of venomous mygalomorph spider native to eastern Australia, usually found within a 100 km (62 mi) radius of Sydney. It is a member of a group of spiders known as Australian funnel-web spiders. Its bite is capable of causing serious illness or death in humans if left untreated. [3]
The Newcastle funnel-web spider (Atrax christenseni) is a species of venomous mygalomorph funnel-web spider of the family Atracidae, native to an area north of Newcastle in Australia. [2] Large male specimens have led to the nickname Newcastle big boys.
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 ...
Phoneutria nigriventer is a species of medically-significant spider in the family Ctenidae, found in the Southern Cone of South America (Brazil, Uruguay, Paraguay, and Argentina). [1] Along with other members of the genus, they are often referred to as Brazilian wandering spiders. [2]
The spiders in the genus can grow to have a leg span of 13 to 18 cm (5 to 7 in). Their body length ranges from 17 to 48 mm (43 ⁄ 64 to 1 + 57 ⁄ 64 in). [4] [5] While some other araneomorph spiders have a longer leg span, the largest Phoneutria species have the longest body and the greatest body weight in this group. [6]
“Black widows are the most dangerous spider in our area, but the risk is overblown in the public imagination and bites are rarely life-threatening,” Penn State assistant research professor of ...
And spiders usually don’t bite unless they are disturbed but some spider bites can be deadly according to the Centers for Disease Control and Prevention. How to identify dangerous spiders.