The aliens dropped a seed into the oceans for humans to evolve (females being the first
) & unwillingly detoured an meteor to hit Earth to decimate the dinosaurs in order for humans to survive.
For me the question of life is not how we came about but how they came about?........
Years ago, I use to have dreams about them, recall a very vivid one of this alien who left his family to do temporary work on another planet & when he was taking leave of his family he had a vision he wouldn't see them again (ignored it for being nervous)
Anyhow when he done the work & flew back, his planet was no more just fragments in space.
I was so affected by these dreams that I done pictures & when I saw the film 'The Man who fell to Earth' I cried at the ending.
Here's an old poem (influenced by my dreams but based on Earth).