Search results
Results From The WOW.Com Content Network
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 ]
Humans can be ten times more sensitive to the P. nigriventer venom compared to mice. Primates, such as monkeys and humans, are said to react particularly strongly to the venom components. [19] Aside from causing intense pain, the venom of the spider can also cause priapism in humans. Erections resulting from the bite are uncomfortable, can last ...
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]
While most spiders can deliver venom, only a few pose a threat to humans. ... Venoms from any spider are poisonous and/or toxic to their prey, but most are not poisonous or toxic to humans.” ...
The website says the spider tends avoid confrontation with humans. The spider does have small fangs, but they are only strong enough to eat other insects. Joro Spider (Trichonephila clavata)
Male and female northern tree-dwelling funnel-web spiders rear up and display their fangs when confronted, drops of venom appearing on the ends of their fangs. They are unable to jump. [6] The venom of the species is potentially deadly to humans, and regarded as the most toxic of those in the family Atracidae. [7]
There are a few larger spider species, including wolf spiders and fishing spiders, that might get aggressive and bite humans if they're provoked. But bites from these spiders aren't dangerous.
The blue-ringed octopodes (Hapalochlaena spp.) produce tetrodotoxin, which is extremely toxic to even the healthiest adult humans, though the number of actual fatalities they have caused is far lower than the number caused by spiders and snakes, with which human contact is more common. [8]