・これは分詞構文だと思うのですが、何の意味でしょうか？ ・最初に装飾の話が出ているので、あえて言うなら譲歩のきがしますが、そこまで考えずに読んでしまっていいのでしょうか？ ・More than 400 Natufian burials have been found, most of them simple graves set in house floors. ＜文全体＞ As always, there is more to a major cultural change than simply a shift in economics. The Natufians made (and presumably wore) beads and pendants in many materials, including gemstones and marine shells that had to be imported, and it is possible that this ornamentation actually reflects a growing sense of ethnic identity and perhaps some differences in personal and group status. Cleverly carved figurines of animals, women, and other subjects occur in many sites, and Natufian period cave paintings have been found in Anatolia, Syria, and Iran. More than 400 Natufian burials have been found, most of them simple graves set in house floors.