I had a look on the map and realized most of these countries are equatorial where it is hard to breathe due to humidity and lack of oxygen in your lungs makes you inhale big volumes of air into your lungs. Starting from Fiji, New Guinea, Indonesia to go on central Africa, Kenya, Congo and so on. But why the wide nose phenotype is not that available in south American amazon? Does this mean that people from that region are new to that environment? and why do some Chinese have flat nose? this gets rarer when you go towards north China. Mongolians usually have bony faces with big cheeks and normal straight nose.
However in other places such as deserts which are dry hot like Saudi Arabia, people have hawk nose. Perhaps this was evolved to protect them from sand blowing to their faces.
and there goes Scandinavian nose, no comment...
