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Invasive Species: Fire Ants

Invasive fire ants. Crossing the border from South America to North America, they’re on-the-march across the U.S. Southeast and beyond. How does habitat – in particular, corridors that connect one place with another – help these ants spread?

For more information and updated video visit: http://www.nsf.gov/discoveries/disc_summ.jsp?cntn_id=132165
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