Overview:Horizon makes an investigation into claims by a group of scientists who theorize that dinosaurs were not actaully cold-blooded reptiles, but hot-blooded, like mammals.
Watch Trailer
First Air Date: Feb 04, 1964Last Air date: Aug 18, 2025Season: 61 SeasonEpisode: 1170 EpisodeRuntime: 60:14 minutesQuality: HDIMDb: 3.6 / 10 by 33 usersPopularity: 15.9893Language: en
Comment