Imran and Nabil like to write science fiction stories. Crazy stories like how their brains jump through the space-time continuum to alternative universes. When they want to brainstorm new ideas, they go to SciWorks, their hometown science center in Winston-Salem, North Carolina. They had fun seeing the farm animals in the Barnyard exhibit and wild animals in the Environmental Park. That got them thinking: What makes some animals called farm animals and others are not?