Evolution of the Lungs

           In my prediction, I believe that humans will have a larger pair of lungs in 3014. In 2014, humans are constantly burning trees, gas and coal for more land and energy. When these things are burned down, not only is there less oxygen production from trees but there is also more gases in the atmosphere. This makes a less concentration of oxygen in the air that we rely on. With the less oxygen, it means that we have to take in a larger breath to get more oxygen. One way this is done is having larger lungs to take larger breaths. By doing this, there would be more oxygen in each breath with we depend on.

            The large lungs are caused by a substitution mutation in the GATA6 gene. This gene is responsible for the development of the lungs in the young ages of the human. Not only that, it is also responsible for the development of the gut and heart. The mutation of the GATA6 gene causes the development to become uncontrolled so when the lung development is not regulated, it causes the lungs to grow larger than usual.  This mutation will cause the human to have a larger breath to take in more oxygen. 
            This mutation will first appear in the people that live near industrial areas and areas where forest are being burnt down. They are more likely to have pollution in the air. This mutation is able to be passed on to future generations because it is a beneficial mutation. The mutations allow them to take in more oxygen for many life dependent actions. People who are unable to breathe enough oxygen will die and those who do will survive and reproduce, passing on the traits to future generations.

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