O ye of little faith!... Look, it's quite simple: First, a bunch of space goop got together because of magnetic attraction. Then it got wet. Then the wet enlarged, because of the heat from the Sun, into an ocean. Then lightning (probably from the Sun) hit the ocean and caused some of the little squiggly things to come to life. Then a few of them, through natural selection, crawled out onto the beach. Then those that were stronger survived, and became marsupials and antphibians. Then they fought and some died and some reproduced, and the results were called higher Neanderthals. Then they became men with souls and stuff. How? Well, somethng else happened.