And I and my colleagues cut into it, and we were able to determine, by looking at lines of arrested growth, some lines in it, that B-rex had died at the age of 16.
私と同僚は化石を切り出し 成長停止線によって このBレックスが１６歳で 死んだとわかりました まだ最高齢の恐竜を発見していないため