You have posted another assumption and that is that all Christians take what is in the Bible for granted. I don't and I know many creationists who do not and I also know Christians who view Genesis 1-4 as allegorical.
As to the links you supplied, similarities in skeletal structure do not necessarily demonstrate evolution to be true. Sound design dictates that differing vehicles have a similar design without having evolved; a wise creator will use the same principle. Christian scientists who are proponents of an old age for the universe with impressive credentials in anatomy and other scientific disciplines can easily explain the similarities in physiology. The only people on this forum who deny science are the atheists who refuse to read what science has discovered in the last 20 years and continue to appeal to a theory in crisis.