Top 10 Invasive Species In the United States

Animal and plant species are uniquely adapted to their ecological niche. But where man goes, invasive species frequently follow, or at least hitch a ride. These invaders can cause millions of dollars in damage each year and may destroy native species and habitats. Ironically, some of these invasive species were introduced into the United States years ago to solve an environmental problem, before their destructive potential became apparent.