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National Geographic Documentaries: Season 2007

2007x25 Science of Gigantism
TV-PG

  • 2007-11-21T02:00:00Z on National Geographic
  • 45m
  • United States
  • English
  • Documentary
They soar to record heights, towering over normal people. From a benign tumor on the pituitary gland to excess growth hormones, find out how giants are made.
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