In the past the green iguanas of Central America have been used in movies to depict dinosaurs. This film explores how the social lives of these modern lizards may hold the clue to the behaviour of dinosaurs. Narrated by David Attenborough

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  • Episode Number 14
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  • Originally Aired Tuesday, April 30, 2002
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  • Last Updated By Atellyer
  • Last Updated 09/03/2017 12:11pm