These include nuts such as chestnut and walnut, fruits such as grape, silver-vine, and raspberry, fish bones such as sea bream and yellowtail, and animal bones such as hare and flying squirrel, which would normally be difficult to preserve due to decay. In addition, fishing tools such as fishhooks and harpoons made of animal bones, wooden digging sticks, lacquered combs and vessels, and various other items have been excavated.