People in this period lived by hunting with bows and arrows, and fishing, as known from shell mounds or collecting fruit, and they used chipped stone tools, polished stoneware and bone tools.
弓矢を用いた狩猟、貝塚に見られる漁労、植物の採集などで生活を営み、打製石器、磨製石器、骨角器などを用いた。