Plot summary
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 theories of why they exist.
Uploaded by: FREEMAN
Director
Top cast
Peter Cullen as Self - Narrator US
Tech specs
720p.WEB 1080p.WEB 423.84 MB
1280*714
English 2.0
NR