Question for the biblical religious

[pacfan]

One time I was once doing some work outside in a very hot tropical weather and tons of sweat started to pour down from my forehead. But what surprised me just a bit was that those sweats were perfectly deflected by my eyebrows away from the eyes, and that's the first time I really knew what they were for and the first time I saw them in action. They were meant to keep the irritating sweat away from the eyes. What a nice contraption, I thought. Then I thought of the theory of evolution. According to the idea of suvivivor of the fittest, those eyebrows evolved so that I might have a better chance of surviving and passing on my genes to the future generations? So that means I evolved those eyebrows so that I can see clearly without any sweat coming into my eyes and helped me fight off successfully my ancient competitors who didn't have one? Naw, I don't buy that. That's stupid - eyebrows giving me advantage over my competitors who didn't have one? and so I survived while they went into extinction? just because of them damn eyebrows? Who am I kiddin.'

So if they really didn't have any significant effect on our survivor why were they evolved? By accident or is it just for our convenience? 'Nature' must have loved us so much if they thought of our convenience, a concept, I think, not part of the evolution theory. I'm pretty sure there are lots of other features in our body that don't have much significant effects on our survivor but are just conveniently there for us. So 'nature' has a heart afterall.