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A group of giraffes live in the savannas of Africa where they roam freely among the open plains.
Some giraffes had long necks while others had short necks.
Minerals within the ground went around and infected all the bushes, so eventually all the infected bushes died off.
With the short neck giraffes not being able to reach the tall trees some started to die off while others were effected by the minerals.
The only mutation the minerals had on the short neck giraffes was growth. The short neck giraffes affected grew a long neck and longer legs.
After generations and generations there were no more short neck giraffes.
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