Wings

... four-limbed descendants. Arthropods have been a bit more flexible, but the general trend seems to have been toward leg loss, as in insects. Plus wings that did not start as legs.

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... the caminalcules. This means finding cases where two or more species have a similar characteristic that evolved independently in each lineage. The wings of bats, birds, and bees are an example of convergence since the three groups did not inert the characteristic from their common ancestor. Write ...

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See examples: The eye: http://www.youtube.com/watch?v=2ybWucMx4W8 The wings: http://www.youtube.com/watch?v=ca6dl_12KUc Furthermore some structure can appear fully formed because of the way limb formation are controlled. There are quite a lot of version of ...

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... beginning because there were needed more mutations and selection to optimize them. How can e.g. the evolutionary beginning of an arm, a heart or wings kind of survive the process of evolution as their first forms weren't just mostly useless ( due to them not being complex and not having a function ...

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Definitely an adult insect, looks like 2 wings rather than 4, so probably a fly of some sort. It's hard to do better without knowing where and how it was found...

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