Evolution is pretty amazing. In the words of the great Carl Sagan, everything you see around you is a result "of the things that hydrogen atoms do, given 15 billion years of cosmic evolution."
Without evolution, you'd be less than pond slime and you certainly wouldn't have those handy opposable thumbs that let you do everything from peel bananas to do up your fly. The sheer majesty of the natural world around us is testament to its awe-inspiring power.
So if evolution is such a good thing, then why does you back hurt like bloody murder all the time, why has your waistline ballooned and what exactly is the deal with childbirth?
Surely, if anything was going to dissuade you from the idea that you're the pinnacle of human evolution, it's a long hard look in the mirror.
Well, contrary to popular belief, evolution isn't a perfect process. Evolution isn't a designer, always striving for perfection, it's more like a mad scientist trying to make a device on the fly for an unknown purpose whilst blindfolded.
As a result, the end product is a bit of a jumbled mess. It works, but in a bit of a roundabout way and there are definitely a few features that would be taken out in beta testing.