7 of the World’s Deadliest Spiders

Black Widow Spider

The black widow is responsible for more than 2,500 visits to poison control centers every year in the U.S. Its bite, which may feel like a pinprick on the skin, often produces severe muscle pain and cramping, nausea, and mild paralysis of the diaphragm, which makes breathing difficult. Most victims recover without serious complications. Although the bite is thought to be fatal to very small children and the elderly, no deaths have been attributed to bites by widow spiders in the United States.

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