Dash GPS and Ants
When Dash Express, a GPS with internet connectivity and utilizing the collective knowledge about routes from its users was announced, it was quite an innovative concept. But it seems ants might have beaten them to it. Though a bit of rudimentary technology but it works from the Telegraph article (HT Marginal Revolution)
His team set up an “ant motorway” with two routes of different widths from the nest to some sugar syrup. Soon the narrower route soon became congested.
But when an ant returning along the congested route to the nest collided with another ant just starting out, the returning ant pushed the newcomer onto the other path.