Synopsis
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. —David Foss
June 30, 2021 at 08:27 PM
Director
Cast
Tech specs
1080p.WEB 720p.WEB 869.68 MB
1920*1072
English 5.1
NR
