Bitter
Mega Poster
Hmm, I get here you're coming from, but i fear you maybe oversimplifying the problem.
Firstly, we do have good evidence for evolution, not just in a better than publicised fossil record than religious people would have you believe, but in genetics themselves, which show clear correlation between us and bacteria, and all other species having come from a common ancestor, mentioned briefly in the Dan Dennett lecture i posted a link to.
There are a few problems with the arm turning into a wing dilemma you point out. Firstly that wings alone are not enough to fly; a honeycomb bone structure, muscle structures and feathers are all fairly vital to flight, as well as an innate ability to fly I am told from a friend doing natural sciences at Cambridge. She informs me that some animals show characteristics of other animals which may be of use to them, but they do not possess the ability to use it. The point being that an arm evolving towards a wing wouldn't be an advantage in itself. Also, as you say evolution is random, and so to imagine a half-arm-half-wing is to suggest that the arm is in "mid transformation" aiming at becoming a wing, which as you said yourself isn't what happens. These evolutions obviously take millions, even billions of years, and any number of influences can affect how they turn out.
It is a tricky subject to articulate a proper response to, and there are many points to be covered, not necessarily satisfactorily, and certainly not on a roller coaster forum. It is a very interesting debate, but we have somewhat strayed from the main topic itself, and taken the discussion about as far as it should probably go. I wouldn't mind furthering our discussion in other ways however, as I always love a good intelligent debate.
Firstly, we do have good evidence for evolution, not just in a better than publicised fossil record than religious people would have you believe, but in genetics themselves, which show clear correlation between us and bacteria, and all other species having come from a common ancestor, mentioned briefly in the Dan Dennett lecture i posted a link to.
There are a few problems with the arm turning into a wing dilemma you point out. Firstly that wings alone are not enough to fly; a honeycomb bone structure, muscle structures and feathers are all fairly vital to flight, as well as an innate ability to fly I am told from a friend doing natural sciences at Cambridge. She informs me that some animals show characteristics of other animals which may be of use to them, but they do not possess the ability to use it. The point being that an arm evolving towards a wing wouldn't be an advantage in itself. Also, as you say evolution is random, and so to imagine a half-arm-half-wing is to suggest that the arm is in "mid transformation" aiming at becoming a wing, which as you said yourself isn't what happens. These evolutions obviously take millions, even billions of years, and any number of influences can affect how they turn out.
It is a tricky subject to articulate a proper response to, and there are many points to be covered, not necessarily satisfactorily, and certainly not on a roller coaster forum. It is a very interesting debate, but we have somewhat strayed from the main topic itself, and taken the discussion about as far as it should probably go. I wouldn't mind furthering our discussion in other ways however, as I always love a good intelligent debate.