[ WP ] Build a World Part I : Inception

So the humanoids on the planets closest to stars would be dark skinned, tough, adept at surviving in harsh hot climates and living off very little water, hunts what little fauna there might be on their planets - for desert planets closest to stars, this might mean lizards and such, whereas for slightly milder jungle planets there might be a little more choice. The humanoids on the dry, arid planets suffering the worst from proximity to their sun would be nomadic, travelling far across the planet to stay as far away from the burning sun-facing side. 
 
 These warmer humanoids I imagine being more primitive than their counterparts further out in their respective systems, as they spend more time focussing on their own survival than advancement of technology. 
 
 The safe zone inhabitants would have it easier. The ones nestled right in the middle of the optimal habitable area would be the most advanced and able to explore other parts of the universe, whereas the colder climates at the edge of solar systems are home to thicker skinned, hairy neanderthal-type humanoids hunting mammoth mammals and other ice dwelling beasts, and the cold climate and distance from the sun makes it difficult to successfully leave the planet, as their is little solar wind and air currents on these planets are n't very strong. 
 
 I'm literally making science up here, it's like being back in school. 
 
 Perhaps in solar systems, or on a wider basis galaxies, are experiencing convergent/divergent evolution, in that the primitive species on each planet is similar to others but more adapted to their particular environment, as described above. This lends nicely into the god theory put forward elsewhere, in that the universe was engineered, and maybe a few base life forms were spread wide as a basis for evolution to take hold. 
 
 Perhaps different systems/galaxies are divided by vast gaps, where the air is so thin and the air is so cold that only highly advanced civilisations would be able to muster the speed/technology to get across successfully without suffocating, freezing or starving. Within each system different base life forms were evolved from, so there is a wider difference in species traits. So, say, within system a bunch of humanoids eventually advance enough to leave and meet their counterparts on other planets, and are not so unnerved by similar looking beings, but later on when further travel is available, and the harsher parts of the void can be traversed, completely new sentient species are chanced upon and the reaction is much different to the in-system meetings. 
 
 Just my thoughts, could definitely be improved upon.
