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| National Geographic reviews Jack Horner's research into juvenile dinosaurs. His evidence suggests that juvenile dinosaurs looked sufficiently different from adults that they have sometimes been mistaken for a separate species. The program examines specific changes that occurred as dinosaurs aged and speculates on why the changes were necessary. | |
| Uitzending: | 11/10/2009 | 
| Rating TheTVDB: | Nog geen stemmen uitgebracht | 
| IMDB ID: | Niet beschikbaar | 
| Laatste update: | 20/03/2021 om 19:18 |