The shape of our faces changed AFTER we left Africa

It was a key moment that allowed our species to spread around the world from humble beginnings in Africa. But the migration of our ancestors from the African continent around 50,000 years ago was not helped by the evolution of our noses. In fact, our protruding noses formed as a result of other changes in our face and did not help us adapt to new climates as was previously thought, new research suggests. The researchers used a computer model to simulate the flow of air through human noses, pictured, compared to chimpanzees and macaques. We are flat-faced hominins with external noses that protrude from our faces.