If you've ever had the misfortune of stepping on a Fire Ant mound, you know that these tiny terrors are not to be trifled with. Native to South America, these crimson critters have been spreading across the globe like a plague of biblical proportions.

But what makes fire ants so formidable? For starters, they have a nasty sting that feels like, well, fire. They also have a unique venom that can cause everything from painful welts to anaphylactic shock. And if that wasn't bad enough, fire ants are also master architects, building elaborate underground nests that can house up to 500,000 individuals. But perhaps the most terrifying thing about fire ants is their ability to band together in floating rafts during floods, creating a nightmarish ball of stinging fury.

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