在伯利兹发现的第一个巨型地懒化石中的牙齿泄露了其所生活的世界 (IMAGE)

American Association for the Advancement of Science (AAAS)

在伯利兹发现的第一个巨型地懒化石中的牙齿泄露了其所生活的世界

Caption

潜水人员在2014年的挖掘中所发现的某个已灭绝的巨型地懒的部分上部肱骨。

Credit

Lisa J. Lucero, courtesy of VOPA

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