Why do we behave the way we behave? This question has set many minds racing for millennia and now in this age of scientific reasoning we are searching for answers to this age old question from a whole new perspective.

"If we are the product of evolution, so should be our behavior!" - is the basic premise behind this school of thought and in spite of wide criticism in its early days, its proponents have managed to credibly explain hitherto puzzling behavioral tendencies. They propose that most behavioral traits we share exist only because they gave us or our evolutionary ancestors an advantage over their peers to survive and breed successfully.

To start with, it is important to understand that this theory revolves around broad species level traits and should not be applied to explain individual level behavioral variations. Individual level behavior is not just a consequence of our genes but also depends on what we are exposed to as an individual during our lifetime. On the other hand some behavioral traits might not have any evolutionary significance. They could just be making a pass on us waiting for Natural Selection to prune them out.

Its interesting to note that even abstract concepts such as our perception of beauty can be explained with this theory.