Throughout our evolutionary history, human beings have migrated and moved in response to changing climates and the shifting availability of natural resources. Africa, the cradle of humanity’s birthplace, has witnessed successive waves of human migrations moving outwards to Europe, the Arctic, across Asia, and eventually crossing the Bering Straits into the Americas. Today, the genes, languages and myths of indigenous peoples bear testimony to these early human movements to every remote corner of the globe.  The theme of the Internationa...