Why haven't we observed mutations of new body parts?

Do we really have examples of the transitions all the way through? For wing devopments? It seems that wing development in entomology hasn't been addressed, and this should create a bigger problem to evolution than whatever ornithology could pose.

I don't know much about evolutionary biological development, but I was under the Impression that wings were present in insect ancestory since the beginning of it's divergence from Crustacea. The insects that do not have wings evolved to that stage from winged ancestors (i.e. siphonaptera from mecoptera). I thought that Stoneflies had evolved from a protelytropteran like ancestor along with many other major orders of insecta all containing wings.Wouldn't it be pointless to try to experiment on wing development on an insect that is believed to have recieved it's wings from an ancestor of a different taxa? I believe that my information is dated, and I would be very grateful if you could give me a link to a better phylogenetic tree.Aren't Stoneflies on the Neopterous stock and the "...other aqautic nymphs..." that Matthew Holm is referring to in the Paleopterous stock. So these insects aren't even monopyletic right? Then what would be point of even mentioning examples from other insects if it isn't even in the lineage of the insect in question?If your statement is true than why would James Marden be expermenting with wing development when he could be studying the evolutionary development of the stoneflies feet. [qoute]...the feet are covered with water-resistant hairs and are filled with gas[/qoute] Which seems to be very specific to the stonefly. Is it because if the feet were not how they are now the stonefly would have no way to float on the water? It kinda creates an irriducible complexity issue. If it weren't for the feet than the wings would be pointless, why doesn't the biologist try to tackle the harder question? If he solved this tougher question than his hypothesis would be easier to prove.Thank you so much for the links I really enjoyed watching the videos.

Oops! I never gave the link to the Insectal phylogenetic tree I was using.here it is Britannica

True lots of bugs have the ability to walk on water, but none share a common ancestor with the stonefly. For example water striders belong to a completely different stock. Personally I think it would be exciting to see what scientists come up with!Thank you for the pdf file I am unfamiliar with the different subfamilies(I think), so I will have to research each name and it will take me a while.It almost appears that scientist are just not that interested in insect wing development, and there hasn't been any major theories that have been experimented on. As a creationist I don't see why we haven't majorly questioned the Darwinian theory from this angle. A lot of times creationists attack evolution on what seems to me to be a "long shot".I am still trying to familiarize myself with certain "Evolution terms" such as the Cambrian explosion. Would insect wing development be apart of this explosion? Is this term even viable anymore? And what is the dating that this supposedly happenend?

Thank you very much I enjoyed the conversation

Why are you replying to me? Are you implying that I am an evolutionist?

I believe you don't understand the meaning of Irreducible complexity. Try looking it up.You give yourself away when you refer to the "irreducible complexity" of an atom. Evolution doesn't concern the development of the atom. In fact, I'd guess that a majority of evolutionists consider nature and its elements to be without beginning.Irreducible complexity concerns the inability of a biological unit to function without any one of its parts, and thus the corresponding conclusion that the unit could not have evolved through slow steps, each intermediate step being essentially non-functional.It doesn't have anything to do with the ability of modern science to understand something.

I'm sorry I took so long to reply back.
Have you seen my earlier agrument for IC with the insectal wing? Entomology is really all I can debate on.