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Weusuallyseeancientplantsorinsectsinamber(琥珀).Butrecent...
问题详情:Weusuallyseeancientplantsorinsectsinamber(琥珀).Butrecently,agroupofresearchersfoundsomethingunusualinamber—afeatheredtail!Thetailincludesbones,softtissueandevenfeathers.Itis37mmlong,whichisa...