A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation characters which promote or guarantee reproductive isolation when the external barriers break down.

Evolution ... is opportunistic, hence unpredictable.

I have the honesty to say I'm an Atheist. There is nothing that supports the idea of a personal God.

A species is a reproductive community of populations reproductively isolated from others that occupies a specific niche in nature.

The major novelty of my theory was its claim that the most rapid evolutionary change does not occur in widespread, populous species, as claimed by Most geneticists, but in small founder populations.

The reduced variability of small populations is not always due to accidental gene loss, but sometimes to the fact that the entire population was started by a single pair or by a single fertilized female. These 'founders' of the population carried with them only a very small proportion of the variability of the parent population. This 'founder' principle sometimes explains even the uniformity of rather large populations, particularly if they are well isolated and near the borders of the range of the species.

There is more to biology than rats, Drosophila, Caenorhabditis, and E. coli.