Jack, if you read the bible ,I think you might see that the animals were bought to Noah, he did not have to round them up........the generations I mentioned were not the genealogies and other biblical data, but of animal life, though I accept that the generations of men can be better estimated from the biblical data and other records.    The point is ,that there were several hundred yrs for animals to distribute globally....and I remind you that what you are challenging there, is evolutionary talk too!   The part that man played is only part of the overal picture of the movements........I would like to think that your misunderstanding is unintentional, or that I was not clear enough.          If you read your bible, or when I should say, you will know who it is that is described as light in whom there is no darkness at all.   Do you think that he is unable to provide a light source before the sun was created on day three?    And do you not think that the biblical writer/ compiler did not realise that light now comes from the sun. If anything, what you claim discredits genesis testifies to its genuineness.   I will try to be clearer, and maybe you might need to read more carefully too.