Year 2150, humanity is expecting the most devastating winter of all times and they know it 6 months before it happens. Every scientist of every country are trying to develop a solution so that their country can survive, but nothing seems to work. It seems inevitable that the humanity will fall.
Suddenly, somewhere far away in Russia, a scientist discovered an object, some kind of luminous rock, underneath the earth of his farm. Without losing any time, he started studying this strange object and found out that this object when in contact with human blood had some weird effects.
Since the world was coming to an end, most of the countries of the world had already liberated experiments on humans, which were all volunteers because there was no hope left and they had nothing to lose.
This russian scientist started the experiments on adults but most of them were failures, leading to death or deformities and that made him realize that he needed to test on younger subjects. After lots of experiments and tests, he found out how to make the body of the younger subjects to become much more resistant to cold. Eureka! - He thought. Finally there was hope for humanity.
But, after some months, the first subjects started to grow mutations of all kinds, from being able to jump much higher than a normal human would to being able to run so fast that one could cross a pool just by running on top of it.
So, I wanted some of the subjects to grow wings after a while, which would grow bigger as they age.
Could this be possible? Why would they grow wings? Does this seems coherent to my history?