Science, Creation & EvolutionHow do creationists explain atavisms?OK, Helix, let's go with that as a possibility. from here: http://www.acsonline.org/factpack/humpback.htm Giving evolution every benefit possible, let's go with the 6 year age for sexual maturity. Add a year for gestation and we have a generation time of seven years. Now, if you have as much as one heritable negative mutation a generation, you have something referred to as a population catastrophe. That population is doomed to extinction with no way back. So you have to have LESS than one heritable mutation per generation. That means you are going to have to have at least 2000 generations for each possible positive mutation. We will ignore the fact, for the moment, that NOWHERE has it been seen in the lab or out of it an episode of one positive mutation bulding on another for any reason at all. We'll pretend that actually can and did happen. Four thousand generations of whale-predecessors and two beneficial mutations have appeared which will be used to form a whale in the future. We will also ignore the fact that most mutations of every variety get wiped out in the process of sexual reproduction. We'll keep these mutations we are talking about -- against all odds. Four thousand generations times seven years per generation and we have 28,000 years for two mutations. 100 beneficial mutations doing what has never been seen to be done, i.e. building on top of each other to produce something new, at two thousand generations per mutation, at seven years' generation time... 1,400,000 years for one hundred beneficial mutations. Do you think it took less than that or more than that for the transition from land to water for the whale? The way I see it, even billions of years does not give evolution enough time, given what we know about genetics and reproduction today. And I have not even begun to list the other obstacles standing in the way of this happening, genetically. |
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