Undoubtedly, the United States exports some of the world's most in-demand products—aircraft and medical equipment, to name just two. But not everything that leaves American shores is a wanted commodity, especially when it has jumped—or crawled—ship.
Here's a look at the underbelly of exports: eight American critters that have been shipped abroad—either accidentally or intentionally—and have created out-of-control messes. From preying on indigenous wildlife in Asia to spreading illnesses in Europe, these eight invasive species are definitely out-staying their welcome in other parts of the world.
