text: Life originated on Earth - as far as archeologists have figured - by RNA. RNA are a bunch of proteins that line up, and once lined up they perform a function - copy/paste. They split and create identicle RNA. RNA later evolved to DNA - DNA is the double helix, where RNA was a single helix. DNA was smarter and controlled RNA production. RNA is like a blueprint. RNA is believed to have formed in one of two ways. \nOne leading theory believes that microscopic cracks in clay got packed with protein strands, and after a few million years a few of them lined up right and turned into RNA. \nAnother theory that is gaining more credibility with time states that in deep oceans, underwater volcanic vents created high pressure and high energy, and there was a lot of smashing about of proteins down there, and eventually they randomly aligned - again we're talking like millions of years of chance smashings before a few were lined up in a pattern that would survive.\nFrom there, RNA smashed into eachother similarly to the protein strands until two perfectly lined up, and bam: DNA. (Again a few million years time probably went by)\nThis continued, and soon DNA evolved with cell walls into Bacteria, and bacteria absorbed different sorts of RNA and smaller, weaker bacteria, and they used these smaller species as tools to become a stronger whole being, and soon they had absorbed a few different things, formed a strong outer wall, and became cells. \nNeat, huh?