Perhaps, 2 schools of thought:
a) We are created. Hey, who gives a toss, it's all Gods fault.
b) We evolved, over 100's of 1000's of years as a hominids and prior to that as some sub species. Whatever we were, it had a tight family unit, all members of that unit protecting each other and all members contributing otherwise it wouldn't have survived. The ones that failed to support would become extinct; no family and the genes end there. The ones that did fight for the family unit would produce young and would survive. Survival of the fittest. A natural selective breeding which supported the family unit, which is why modern man, the pinnacle of human evolution doesn't generally murder, rape and destroy for pleasure. But this is a generalisation. There will always be the odd 2% that think different and we are, no matter how superior we feel, the result of evolution from the animal kingdom.