The study revealed a new reason for the evolutionary change of the human face

Faces of ancient people and modern people are very different — scientists believe that these changes have occurred for four million years, as a response to climate change, consumption of food and the physiology of respiration. However, researchers often neglect another reason why coarse faces of ancient people, could be like now a social necessity. For a better understanding of each other people needed to actively use facial expressions, so that evolution had much to soften the “hard mask” of our ancestors.

Эволюция человеческого лица

According to the Professor of anatomy, University of York Paul O’higgins, the number of factors of formation of the modern person it is worth mentioning not only a diet, physiology of respiration and climate, but also the need for people to Express their emotions with facial expressions. Using the skin, bones and muscles, modern humans can Express up to 20 different categories of emotion, but ancient people this opportunity was not available.

To Express the sense of recognition and sympathy, human eyebrows were lowered down to the forehead left more space for their movements. At the same time, the face became smaller and leaner — all of this can be seen on video below.

We believe that reinforced the need for communication is the likely reason that the man’s face became less and less pronounced brows. This allowed the use of more subtle facial expressions and hence improve nonverbal communication.

Rodrigo Lacruz, a biologist from new York University

Of course, a new factor affecting the shape of a human face does not negate other causes of the changes. For example, the reduction of the jaws of the people contributed to the rejection of rigid plant foods — the ancestors ceased to break her teeth, and began to prepare, handle and cutting by improvised means.

A softer diet reduced a human face. However, there are limits to how much it can vary — for example, breathing requires a large nasal cavity.

Paul O’higgins, Professor of anatomy

Scientists believe that over time human face will continue to change. In particular, the increase in temperature of the planet will most likely change the shape of the nose, to allow air to cool before entering the lungs.

What do you think, what other changes will stand our faces in the course of evolution? Their assumptions share in the comments, or in our Telegram chat.

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