Hardly. Evolution isn't based on scripture, it is based on scientific evidence, just like round earth theory, heliocentrism, atomic theory or germ theory. And instead of it being the whole base, there is a vast amount of evidence from multiple scientific disciplines for evolution.
What it does show is the one of the problems creationists have with evolution, a deep rooted reaction against the idea of humans being animals too, simply isn't scriptural.
I am not sure what version you are looking at, but any one I have seen start a new sentence in verse 18. Nor do I see how verse 18 is supposed to help you case. It does not change his statement in verse 17 they we are animals and the God wants us to realise we are animals. It also says we are more than animals. In ourselves we are animals, but he has also said that God has put eternity into man's heart (verse 11). So we are animals in ourselves, but animals in whose hearts God has put eternity. Verse 21 is really good too, and cuts through even more of our traditional ideas about the distinction between men and animals. Eccles 3:21 Who knows whether the spirit of man goes upward and the spirit of the beast goes down into the earth? Apparently Solomon thought animals have spirits too. Their spirits may have a different eternal destiny to ours and may simply disappear when the animal dies, but they do have spirits.
He certainly was.