Or, see biology online ( <a href="http://www.biology-online.org/dictionary/Gene_Flow">http://www.biology-online.org/dictionary/Gene_Flow</a> ): ???The movement of genes from different populations of species.??? The wording is a little awkward, but if you go to their definition of population(s) you find:???A group of organisms of one species that interbreed and live in the same place at the same time (e.g. deer population).??? In any case, all of this suggests t