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tsr zarrella florida giant snail invasion_00002514.jpg
tsr zarrella florida giant snail invasion_00002514.jpg

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    Giant snails invade, threaten Florida

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Giant snails invade, threaten Florida

Giant African land snails pose a big threat to Florida. CNN's John Zarrella explains why.

Giant snails invade, threaten Florida

Giant African land snails pose a big threat to Florida. CNN's John Zarrella explains why.