我记得年轻时在法国埋了我的玩具剑。
The disappearance of megafauna in America—mammoths, saber-toothed cats, giant sloths, among others—happened relatively soon after the arrival of human beings, about 13,000 years ago.美洲巨型动物的消失——猛犸象、剑齿猫、巨型树懒等等——发生在人类出现后不久,大约在一万三千年前。
See "Odd saber-Toothed Beast discovered-preyed on... Plants?"另见“奇异剑齿兽被发现——食的是……草?”