The title of deadliest spider is often attributed to the Brazilian Wandering Spider ( Phoneutria species). Here's why:
Potent Venom: Its venom contains a complex mix of toxins, including neurotoxins, that affect the nervous system.
Aggressive Behavior: Unlike many spiders that prefer to flee, the Brazilian Wandering Spider is known for its defensive posture and willingness to bite if threatened. They are often found hiding in dark places, like shoes or piles of wood, bringing them into contact with humans.
Symptoms of Envenomation: A bite can cause severe pain, swelling, increased blood pressure, sweating, and muscle tremors. In men, a characteristic symptom is priapism (a painful, prolonged erection). Without antivenom, a bite can be fatal, particularly to children.
Antivenom Availability: An antivenom is available, which significantly reduces the risk of death if administered promptly.
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