Although the king of them all, Tyrannosaurus rex, lived millions of years after Borealopelta, the armoured dinosaur may have been hunted by some of its formidable ancestors.
尽管霸王龙是恐龙中的王者，但是，它在披甲恐龙之后数百万年才出现。披甲恐龙可能已经被霸王龙的一些祖先捕杀了。