和现今的一些大型的头部撞击生物相比，如北美的大角羊，北极的麝香牛和非洲的小羚羊，剑角龙的头部可以承受更大的压力。
Compared to some of today's big hitters, such as the Northern American bighorn sheep, the Arctic musk ox and African duiker, Stegoceras' head was able to withstand the most stress.
虽说像萨哈人猿乍得种这样的古灵长目动物给剑齿猫科动物腾出了广阔的活动空间，但它们也可能靠这些以及其他的大型食肉动物生活。
While ancient primates like Sahelanthropus tchadensis gave sabretooth cats a wide berth, they may also have depended on these big carnivores - and others - for their survival.
剑齿动物有可能猎食大型食草哺乳动物，而且它们很可能将猎物上足够多的肉留给大小如豺的Hyaenictheriu甚至像萨哈人猿乍得种这样的食腐动物。
Sabretooths would have hunted large herbivorous mammals, and probably left enough meat on their kills for scavengers like the jackal-sized Hyaenictherium and perhaps even primates like Sahelanthropus.
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