Alien Flies to Extinguish Alien Fire Ant Invasion?

Importing aliens to attack invading aliens may sound like a plot for a science fiction movie, but scientists believe the scheme is the best way to combat Brazilian fire ants that have taken over the southern U.S.

The red imported fire ant (RIFA), scientifically known as Solenopsis invicta, first arrived on U.S. shores over 60 years ago as stowaways aboard cargo ships from South America. Since then they have spread throughout the South, out-competing the native fire ants in their paths.