肉食龙是群大型掠食者恐龙，生存于侏罗纪到白垩纪。肉食龙类恐龙有的体形非常庞大，至少有7米长。肉食龙下目最初包含许多种类的中到巨型兽脚亚目恐龙，但这些物种彼此之间并没有接近的关系。自1990年代以后，科学家们发现一些非常大型的肉食龙下目恐龙，例如玫瑰马普龙、鲨齿龙、魁纣龙等。
近一个多世纪以来，雷克斯暴龙不但成为了恐龙帝国的统治者，更是整个地球生命史的肉食象征。
For more than a century, Tyrannosaurus rex has been the King of Dinosaurs, the carnivorous symbol of an entire age in the history of life on Earth.
早期的兽脚亚目食肉恐龙，包括从迅猛龙到霸王龙在内的所有肉食物种，抢占了地盘并茁壮成长。
Early therapods, the group of dinosaurs that includes all meat-eating species from Velociraptor to Tyrannosaurus rex, gained ground and thrived.
霸王龙是肉食动物的最强的论据之一是它的尖牙尖锐而锋利，跟今天的肉食动物极其相似。
One of the strongest arguments for T. rex being a predator is that its fangs are sharp and pointed, rather like the teeth found in many predators today.
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