merna inherited flat feet shortsightedness and clear skin from her parents. and luis mentions green eyes and yellow teeth which he calls dog teeth blond hair and caucasian skin thanks to all of you for writing in. before were born it's pretty clear what we're going to look on. foot over the course of evolution our genes have adapted to the environment one study says that our nose shape has adapted to the climate with warm humid areas leading to a wider nostrils and a cold climate to more narrow ones but are we as good as it gets. there are plenty of features that don't make us look so good. human beings some of us think we're great at the pinnacle of evolution. really. we might have high performance brains for instance but they're also extremely dependent on oxygen a construction flaw that can quickly become fatal. our evolution through the ianthe has left our eyes with a blind spot and they see the world upside down our brains have to invert the image to compensate. and our jaws shrunk so starkly over time they've become too small for all of our teeth fortun