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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]
The Chilean recluse spider, Loxosceles laeta, is a highly venomous spider of the family Sicariidae. In Spanish, it (and other South American recluse spiders) is known as araña de rincón, or "corner spider"; in Brazilian Portuguese, as aranha-marrom or "brown spider". It is considered by many to be the most dangerous of recluse spiders, and ...
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 ...
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 ...
While some very venomous spiders do not always inject venom when they bite, these spiders most often do. [ citation needed ] The volume of venom delivered to large animals is often small, possibly due to the angle of the fangs, which are not horizontally opposed, and because contact is often brief before the spider is brushed off.
Each year, the Australian Reptile Park collects funnel-web spiders — arachnids native to Australia that are some of the most venomous spiders on the planet — with help from the public for its ...
Latrodectus mactans, one of several venomous North American black widows. Australian funnel-web spiders [4] (Atrax and Hadronyche spp.) Brazilian wandering spiders (Phoneutria spp.) All widow spiders (Latrodectus spp.), including the black widows, button spiders, Australian redback spider (L. hasseltii), and the endangered katipō of New ...