Indus river- Begins in tibet and moves south west to india
I believe the reason for this would be geographical evolution. Different ecosystems cause the finches to evolve differently over time. Also, since the finches on the Galápagos Islands are closer to the one in South America, it is likely that finches from there (South America) could have moved to the islands, contributing to the evolutionary process.
The Berlin wall was a barrier that existed from 1961 to 1989 throughout conflict and separated East and city district. It symbolized the distinction between western democrats and jap communists (end of soviet domination) and therefore the method they thought FRG ought to be lead. Fall of Berlin wall could be a major event in European history. The policies of restructuring and openness initiated by soviet leader Mikhail opened the trail for the destruction of the symbolic physical barrier.