10 Invasive Species that Changed the World Forever (Slideshow)


Photo: goosmurf/Creative Commons
Invasive species have a bad reputation -- from plant-choking vines to nest-usurping birds, they're often rightly blamed for crowding out native flora and fauna and altering the environment they invade.

But that's nothing, compared to the 10 species on this list: They are so aggressive, they've actually changed the world as we know it.

10 Invasive Species that Changed the World forever
More about Invasive Species
The World's Most Lovable Invasive Species
Moving On Up Means More Invasive Species
Invasive Species: When Small Creatures Do Big Damage

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