Over the course of nearly half a billion years, which deadly predator ranks as the biggest and baddest? Join us as we travel through time and across the world to present this terrifying top ten ranking. We uncover new evidence, put theories to the test, and feature icons like the Tyrannosaurus rex and the saber-toothed cat, plus lesser-known beasts like the terror bird and the ...$科研式纪录片,中文翻译有待加强。$恐鸟,剑齿虎,古巨蜥,恐鳄,霸王龙;海蝎,邓氏鱼,抹香鲸,上龙,锯齿鲨$国外纪录片真是......多么简单的东西到老外那都能仔仔细细给你分析个五分钟....初中老师两句话能讲明白的,这又是建模又实验的....$很不错的记录片,讲述致命生物,多是古生物,并与生物科技联系起来,引人入胜,比如海中的海蝎子、邓氏鱼丶抹香鲸、上龙与巨齿鲨,陆地上的骇鸟、剑齿虎、古巨蜥、恐鳄与霸王龙。$并不用心。