One of of modern scientific theories about life creation is called "rubbish bag" theory. There are these strange organic molecules, which look like cucumbers or like thick sticks. These 'cucumber' molecules have one end electrically positive and the other negative, so they tend to arrange themselves into larger cylindrical shapes that look like bags. They naturally occur in a shallow sea water with lots of sunlight, like little paddles of water on rocks along the shoreline. These bags capture inside, purely by chance, various organic molecules that are floating in these ponds on rocks. When calculated, probability of accidentally grabbing a bunch of organic amino acids that can form self-replicating chains, aka primitive DNA, is relatively high. Once amino acid chains start replicating, you've got the life. British-American scientist Stanton Freedman wrote an excellent book about it, that one can get on Amazon.