Ant Algorithms

New work on the use of biologically inspired methods.  Here the problem is finding shortest paths in busy networks.  The inspiration is how ants can find their way in complex and changing mazes. The efficiently solution of this is industrially very useful.   Report in Physorg.  Shortest path methods in networks have been much studied and there are already fast methods for this problem. Still, any inspiration is worth studying. I have yet to see bio inspired methods solution methods that provide remarkable solutions.