Now there's a science textbook if ever I saw one. </sarcasm>
From what I've seen so far in this thread, sarcasm is the main supporting "proof" of evolutionary theory. I've never debated it before, so it's my first foray into this, but the only proof of speciation offered so far in this thread of evolutionary theory is an article on a London mosquito, but in the same article cited for proof of speciation, the authors declare that no position on speciation is taken and give citations to those who dispute that speciation occurred.
No proof, just a feeling of superiority based on faith in a commonly believed in theory. 150 years of Darwin and not a single example of a species arising from another species. That's a long, long time for such a heavily researched area of science to have no proof.