Analogous Species
Bats are in the mammal group, and not birds, even though they both have wings and are capable of flight. Both of them obtained their wings through many years of natural selection, but this occurrence occurred individually in each lineage; therefore although both wings share a similar purpose, their bone structure is different. Bats and birds do not have a common ancestor from their wings, but they do have a common ancestor from their forelimbs. Analogous means that the trait has a similar purpose, but different origin, while homogony is vice versa. Homogeneity means that the traits have different purposes and look different, but have the same origin.
Works Cited
Homologies and analogies. N.p., n.d. Web.

For starters, I like that you included a work cited. I can now go and check out that link, and that's really helpful. I'm gonna do that in my next post, if I find anything good. I also dig that you talked about the forelimbs as the common trait, and then it becoming the wings; that's more helpful than just blindly answering the question, of which I do often.
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