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10 bugs that will make you squirm

By: Catie Leary on Oct. 16, 2009, 11:22 p.m.
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Photo: mgjefferies/Flickr

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Leeches

For anyone who remembers the infamous leech scene from Rob Reiner's "Stand By Me," it isn't hard to imagine why these bloodsucking annelids fuel so much fear. Leeches are hermaphroditic and can live in saltwater, freshwater and even land. The side effects of a leech bite are usually itchiness as the wound heals, though some people experience more severe allergic or anaphylactic reactions.