Can bees colour maps better than ants?

In mathematics, you need at most only four different colours to produce a map in which no two adjacent regions have the same colour. Utah and Arizona are considered adjacent, but Utah and New Mexico, which only share a point, are not. The four-colour theorem proves this conjecture for generic maps of countries, but actually of more use in solving scheduling problems, scheduling, register allocation in computing and frequency assignment in mobile communications and broadcasting...

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