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1·This evidence suggested Smilodon lived in groups.

这个证据正好表明剑齿虎是群居动物。

2·It's very nice to meet you, Kate. He's an overexaggerated smilodon with comical green hair.

很高兴见到你，凯特。他就像个长着绿毛极度夸张的剑齿虎一样。

3·Smilodon, is an extinct genus of machairodont felid. It is perhaps one of the most famous prehistoric mammals, and the best known saber-toothed cat.

剑齿虎，是已经灭绝的剑形齿类动物的一种，这也许是史前哺乳动物中最出名的一种了，也是最有名的剑齿类猫科动物。