EXODUS: The Red Planet

Have you ever wondered if Mars was like Earth before? If creatures used to live in that planet before humans even existed? If that planet was alive and green like ours? If it was, why did those creatures become extinct? If they didn't become extinct, I wonder what would happen to us now? Would we even exist? Even if we would exist, are things going to be the same as it is now? Is it going to be different? Are we going to believe the Bible and God? Would religion even exist? Is the technology waaaaay more advanced? Are we going to have more knowledge about everything? Are we going to be what we are now? You might be thinking, "Why do you have so many questions? They're not going to be answered anyway because it's nonsensical." Welp, I'm sorry. But I hope these questions would be answered soon, and I hope this story opens up this theory.