So what is the necessary connection between a single bone and the presence of mammary glands? Are you going to tell us that these two completely different, and totally unrelated features developed simultaneously in all species? You are not that silly - or are you? Furthermore, if they did indeed develop simultaneously, what eveolutionary explanation could there be for such a thing occurring? Simultaneous developmental mutations of two different features? You should think before you post.
How can you be sure evolution is wrong if, after all this time and all that has been posted at to you, you don't have a clue what it says or how it works?
Common descent, you idiot! Common descent!