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10 bugs that will make you squirm

By: Catie Leary on Oct. 16, 2009, 11:22 p.m.

Photo: Br-recluse-guy/Wikimedia

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Brown recluse spiders

Most spiders are relatively harmless, but there are a few species — many with extremely potent venoms — that can and will bite a human if they feel threatened. The brown recluse, native to the South-Midwest United States, is one of these. A recluse's bite will induce vomiting, fever, nausea, rashes and muscle or joint pain, and some bites may result in effects as severe as a necrotizing ulcer that can take months to heal.