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The Evolution of Tommy occurred over 500 years

By Jeremyn
  • Apr 14, 1516

    Giraffes from a U.S. preserve escapes into the wild

    Giraffes from a U.S. preserve escapes into the wild

  • No food

    No food
    Many of the trees were cut down in the area where the giraffes roamed creating a very limited food source with only small hard to reach plants and shrubs.

  • Mutation

    Mutation
    A mutation occurs with the giraffes that gave birth to to a short necked giraffe.
  • Period: to

    Natural selection

    Due to natural selection, the short necked giraffe survived and reproduced more short necked offspring. Over a long period of time the short necked giraffe gave birth to the Tommy.