怪异恐龙目录 Bizarre Dinosaurs全集哪里能看
纪录片 美国 2009
状态：48分钟
主演：Jack Horner,Paul Sereno,Gregory Erickson
导演：Jenny Kubo
剧情介绍
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.
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