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The Australian funnel-web spiders (family Atracidae), such as the Sydney funnel-web spider Atrax robustus (a mygalomorph spider, not to be confused with the araneomorph funnel-weaver or grass spiders) are regarded as among the most venomous in the world. They react vigorously to threats and, reputedly, will more often attempt to bite than run away.
[15] which many sources consider make it the most venomous spider in the world. [16] Differences between the venom of male and female Phoneutria nigriventer have been reported, with females producing a greater quantity of venom. [17] PhTx-2 is considered the most toxic group, which is also potent for primates. [18]
Strictly speaking, all spiders and scorpions possess venom, though only a handful are dangerous to humans. Spiders typically deliver their venom with a bite from piercing, fang-like chelicerae; scorpions sting their victims with a long, curved stinger mounted on the telson.
The deadly Sydney funnel-web spider dubbed “Hercules” was found on the Central Coast, about 50 miles north of Sydney, and was initially given to a local hospital, the Australian Reptile Park ...
Symptoms of spider bites vary depending on the type of spider and if their venom is poisonous. Venomous spider bites can cause many side effects, according to the CDC , such as: High blood pressure.
It’s important to remember that all spiders can deliver venom, but most bites have little or no effect on humans, Penn State Extension writes. People with compromised immune systems or certain ...
A spider bite, also known as arachnidism, is an injury resulting from the bite of a spider. The effects of most bites are not serious. [1] Most bites result in mild symptoms around the area of the bite. [1] Rarely they may produce a necrotic skin wound or severe pain. [2]: 455 Most spiders do not cause bites that are of importance. [1]
There is an urban legend that daddy long-legs spiders have the most potent venom of any spider but that their fangs are either too small or too weak to puncture human skin; the same legend is also repeated of the harvestman and crane fly, also known as daddy long-legs in some regions. This is not true for any of the three.