The impressive mountains of the Swiss Jura set the stage for a natural drama – the epic tale of two cities. On the surface, they appear almost identical – but over the next year, these cities will experience dramatically different fortunes. Like any city, they're made up of vast social networks and transport infrastructures, to keep the inhabitants informed and fed. But unlike our urban jungles, these cities are made and run by – wood ants. The story is told, almost like a medieval saga: Sir David Attenborough is our guide through the mysterious realm of ants. On one hand, there is a super-colony over one billion strong – one of the largest animal societies on Earth. Life here is based on co-operation and harmony. On the other hand, we see a single mound city where ants of the same species are always waging wars on neighboring colonies. Tens of thousands of ants are killed in these conflicts each year.
