The Catholic Church no longer teaches creationism -- the belief that God created the world in six days as described in the Bible -- and says that the account in the book of Genesis is an allegory for the way God created the world.
But it objects to using evolution to back an atheist philosophy that denies God's existence or any divine role in creation. It also objects to using Genesis as a scientific text.
According to Ken Ham.
Now, if the book of Genesis is an allegory, then sin is an allegory, the Fall is an allegory, the need for a Savior is an allegory, and Adam is an allegory—but if we are all descendants of an allegory, where does that leave us? It destroys the foundation of all Christian doctrine—it destroys the foundation of the gospel.
If Genesis is an allegory then the first marriage is just an allegory, so marriage can be anything one wants to define it as!
Which would mean the Religious Right who insist the Bible is the LITERAL word of God and that Genesis is correct in every way would be WRONG (Gasp)!