Scientists have so far identified more than 700 specimens, including the skull of a prehistoric American lion and the bones of dire wolves, saber-tooth cats, ground sloths and bison.
科学家们至今已识别出了700多个样本，其中包括：一个史前美洲豹的头盖骨以及袋狼、剑齿虎、大地懒、野牛的骨骸。
Scientists have so far identified more than 700 specimens, including the skull of a prehistoric American lion and the bones of dire wolves, saber-tooth cats, ground sloths and bison.
科学家们至今已识别出了700多个样本，其中包括：一个史前美洲豹的头盖骨以及袋狼、剑齿虎、大地懒、野牛的骨骸。
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