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Which Is the Most Venomous Spider?

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Quick Answer

The Brazilian wandering spider (Phoneutria) is considered the most venomous to humans.

The Full Story

The Brazilian wandering spider (genus Phoneutria) is generally regarded as the most venomous spider in the world based on the toxicity of its venom to humans and its aggressive behaviour. Its venom can cause severe pain, inflammation, and in rare cases (especially in children) life-threatening reactions. The Sydney funnel-web spider (Atrax robustus) is also extremely dangerous. An antivenom exists for both. Most spider bites worldwide are not medically significant; deaths from spider bites are very rare.

Key Facts

1.Phoneutria means "murderess" in Greek.
2.The Sydney funnel-web can deliver a full dose of venom in 0.2 seconds.
3.Fewer than 10 people per year die from spider bites worldwide.

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Suggested video title for this topic:

"The Deadliest Spiders — Wandering Spiders vs. Funnel-Webs"