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Bizarre Dinosaurs

Bizarre Dinosaurs (2009)
HD - 6.7

Bizarre Dinosaurs (2009)

IMDb:6.7
2009

Bizarre Dinosaurs (2009) As dinosaurs grew into the behemoths of the Cretaceous period they evolved many extraordinary but apparently useless features including spikes, sails horns, crests and the tiny "arms" of tyrannosaurs. The program reviews these unusual features and discusses theorie