So we have come full circle with the NEED for time in-order to MAKE the TOE work.
When successful mating is no longer possible, you have different species./i>
No. When successful mating is no longer possible you actually have extinction.
Darwin made a big deal out of dog breeding. Nevermind they are still dogs. To get a "Chocolate Lab" breeders breed yellow labs with black labs. You can't get a chocolate lab by breeding two chocolate labs no matter how many times you try.
When successful mating only occurs among a sub population but no longer is possible with the larger population you have a new species like the large beak finch or the donkey vs horse.
Yes, is it so unusual that time or more specifically number of generations is required? Seems clear to me.
Will dogs continue to be the same species? Or will they branch into little dogs who can no loner mate with big dogs. Anyhow, without human intervention it is very doubtful that any of today’s dogs would exist.
There must be something in the gene allele where there are two recessive traits involved for the labs.