Notice that Brian did not release the frog in its original pond, but in a local one. Gene flow or gene migration can be described as the transfer of genetic variation from one population to another. It is an important way to transfer genetic diversity between different populations, and it usually takes place through the migration of members of a population. In this case, the frog did not migrate by itself, but was taken by Brian instead.
The Soviet Union defeated Germany at Stalingrad, marking the turning point of the war in Eastern Europe. American and Allied troops landed in Normandy, France, on D-Day to begin the liberation of Western Europe.
