Fishy Vision: 
  (sfx: splish splashing)  
     IN TERMS OF PURE PET ENJOYMENT, THE GOLDFISH MAY NOT BE THE MOST
  EXCITING OF ANIMALS.  IT DOESN T MAKE NOISE, IT DOESN T DO TRICKS, IT DOESN T
  CUDDLE UP IN YOUR LAP, BUT PSYCHOLOGIST MAUREEN POWERS AT VANDERBUILT
  UNIVERSITY THINKS ITS PRETTY INTERESTING.
  
     Powers: "The remarkable thing about the common ordinary goldfish, your
  little goldfish is its able to regrow its retina."
  
     AMAZING, HUH?  
     ACTUALLY IT IS.  THE RETINA IS THE SCREEN IN THE BACK OF YOUR EYEBALL
  THAT PROCESS LIGHT AND HELPS YOU SEE. JUST LIKE YOUR BRAIN AND SPINAL
  CORD, ITS MADE OUT OF NEURONS.  AND IN HUMANS NEURONS DON T REGROW. 
  YOUR HAIR, YOUR SKIN, THEY ALL GROW BACK, BUT KILL A NEURON AND IT LL STAY
  DEAD.  POWERS STUDIES THE GOLDFISH TO SEE IF SHE CAN FIGURE OUT ITS TRICKS. 
  
     Powers: "imagine in the future we were able to inject some growth factor
  that allowed the nervous system to regrow." 
  
     IN HER LAB SHE TESTS TO SEE JUST HOW GOOD THE GOLDFISH S NEW
  NEURONS ARE.  SHE S FOUND THAT THE FISH CAN SEE LIGHT AND MOVEMENT, BUT
  CAN T REALLY DISTINGUISH BETWEEN COLORS.  CLEARLY SOME OF THE RETINA S
  ABILITIES COME BACK WHILE OTHERS DON T.  WHILE THE FISH S REGROWN SIGHT
  ISN T PERFECT, IT S STILL QUITE A BIT BETTER THAN WHAT HUMANS CAN DO.  
  
     Power: "were it possible to produce any kind of vision it woudl be better
  than none. "