Here is my take on humans on earth, mars, and the wipe out of the dinosaur.
Millions of years ago we used to live on mars but as we are today, we over populated it and had global warming issues. We were cool with some alien species and the seeked out and found the planet earth, but it had the mean old dinosaurs on there. Our Alien friends knew we would be eaten by them if they flew us over so the hurled a big rock at earth causing the deep freeze killing off almost all of them.
In a effort to save our race we were to send over to the new planet 2 over every animal we had, and board a space ship for earth to start to populate and inhabit the planet. Adam and Eve signed up for this dangerous mission knowing they will never return. The Aliens messed up on their calculations and the spaceship crashed. They feared Adam and Eve for dead, and blew their entire budget on the plan, and couldnt afford to send any more of us over. So the human race dies on Mars when global warming, over population, and food ran out.
Little did they know though that Adam and Eve, and several of the animals they brought over survived. And they started to repopulate earth. Unfortunately because it was just the two of them they offspring had to make it with the offspring, of their offspring, and by the 3rd generation we had too many flipper babies and turned into apes and monkey, from having sexual relations with some of the animals we brought over, and the others turned into "Neanderthals".
Many thousands of years went by and the Aliens found out we had not died off during the crash as they had thought, so they grabbed a few Neanderthal men and women and spliced their dna with some of our older dna to give it a kick into what we are today. During that journey we again became friend with our alien beings, built huge parking structures, pyrimids, and other large maps on the earth so they could find their way around the galaxy if they didn't have time to stop and talk. But somewhere down the line some of our new humans made it with the Neanderthals and started another race. Ones that didn't believe in Space ships, and alien beings. They believed in sun, fire, and wind gods and were known as Indians. Some of the off spring traveled east and became Europeans and dint believe in sun gods and such foolishness, but one god that made the heavens and earth. Without the Alien friends to guide these new breed of humans they couldnt show their faces to them for it would cause a panic among them.
Years went by and the European humans became very smart, and traveled very far beyond where they lived. The aliens feared they would be discovered so they had to leave for ever, but would check up on us from time to time. These new breed of humans were super smart, too smart for their own good for with all the breeding with the other races had almost perfected the original dna strands they once had from their ancestors back on mars. And as the years would go by they would become increasingly aware, and crave more and more knowledge, to a point they will once again overpopulate the planet they are on, and cause global warming of that planet.
Will they survive again without the help of their alien friends? Tune in next generation, on the Funboys fvcked in the head show!