Just so some accuracy can be in here. Life, as in DNA replication, exists for about 3 billion years. The solar system for about 4.5 billion years (our sun is third generation, in other words, 2 solar systems were destroyed before ours was created in roughly the same place), and earth somewhere near 4.4 billion years, although it could have been much smaller than today until about 4.2 billion years.
That "island species" (technically races, not species) die out when reunited with their long lost mainland brethren is not exactly news. It's what's happening to the human species right now. In general, without natural borders, different races are impossible within a species. The fact that we have both global travel and different races is an exceptional situation, and a temporary one (in ~500 years, maybe less, there will only be 1 human race left, unless global travel ends before that time). It is not known which race that will be, but if other island species evolution patterns are any indications, whatever race survives will look a lot like the original human race. It would be interesting to see whether the remaining race would be black or not (if not, that would be a strong indication that the original humans in Africa were not actually black before the races split up. My money's on that they weren't black (cause primates have white skin), but it could very well depend on the exact timing of the split).
My biggest complaint about food crops, rather than their GM-ness (success or failure) is that once we get a "good" strain, we keep cloning it instead of continuing the process via selective breeding. So while each generation of insect improves against the crop, the crop defends damn-near exactly the same way; I suspect that may have reduced the time needed for adaptation as well.
No offence, but this is a trivial, trivial complaint. Don't you think that GM researchers *also* stimulate evolution in those plants ? Also, for extremely obvious reasons predatory species cannot totally wipe out the species they seem to be destroying. Predatory species are fundamentally limited to about 1/500th of the biomass of their victim species (or -usually- much less), except in the extreme short term.
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