Cross-border travel has always been one of the most dynamic travel corridors in the world. For decades, millions of people moved seamlessly between these two neighbors for business, leisure, family ...
This is a preview. Log in through your library . Abstract Several evolutionary hypotheses help explain why only some species adapt readily to new conditions and expand distributions beyond borders, ...
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Recent events in Chad and Sudan show once again that a regional approach is required if there is to be any hope of a lasting solution to the persistent conflict in this part of Africa. In February ...