Plants pollinated by bumblebees become more fragrant.
Until a few years ago, almost all creationists had no doubt at all; evolution simply didn't happen. All living things were created in a couple of days exactly as they are today. There was no debate; evolution didn't happen because it wasn't mentioned in the Bible and that was that.
This is still the position maintained by a large number of creationists who believe the world was created just a few thousand years ago, as we see it today, and nothing has changed since.