Re: Creationists
Birds are presumed to be descendants of Dinosaurs. The teeth give weight to this theory along with other anatomical features they share with their ancestors. Is it a certainty that they are related even then? Highly likely. Barring actually seeing these creature emerge from a dinosaur, the best we can hope for is an abundance of evidence pointing towards the conclusion that they are in fact descendants.
Your boiled down argument is not reasonable. There are many things in science that have not yet been seen, but have evidence to concede their validity. The Sun will one day expand into a red giant, and then shrink into a white dwarf. We have never seen this, but this is understood to be fact. Perhaps one day we will have a time machine in which you and i can both trace the lineage of chicken together and hence you will be convinced, but until then, all we can rely on is the mountains of complimentary evidence, and the basic understanding of genetics that illustrates the inevitability of speciation.
Im sorry, but your starting to sound a bit conceded here. Perhaps I’m slow, or perhaps your giving yourself to much credit?
The point is quite simple. Horses and donkey are of the same genus, so they can interbreed. humans and Chimps are not, so they cannot.
The Chicken or bird may or may not be able to mate with its ancestor, but that was not the point. The point was to show that variation does produce new variation, and variation over time, because of the addition of new genetic info through mutation will eventually produce enough change in the genome to constitute a new species.
i understand your argument. Its can we SEE it first hand. Well, no not yet. But then again, just because we can’t see it for now, does not mean we ignore it. The evidence tells us it is true and so does basic logic. There is no way around it, evolution and speciation is inevitable, even if we can’t see it first hand.
I keep using this simple analogy, but you haven’t told me why it would not be valid. You can see an inch, but you can’t see a mile. Does that mean adding those inches will not eventually produce a mile? In the same way, how can the addition of genetic information NOT produce a new species over time? How can you ignore whats inevitable?