在海滨地带经常可以发现贝冢。所谓贝冢就是埋着大量贝壳的地方。贝冢挖开后,不仅能发掘出大量贝壳,还能发现各种动物的骨头、鱼骨、陶器、石器以及用兽骨制作的工具,还可能有古人所使用的各种各样的物品,所以仔细研究贝冢的情况,就能清楚地了解远古时代人类是怎样生活的。 Shell mound is often found on the beachfront. The so-called shell mound is buried in a large number of shells. After the mound has been excavated, not only can a large number of shells be excavated, but bones, fish bones, pottery, stoneware and tools made from animal bones can be found, and various items used by the ancients may also be found. So a careful study of the shell mound, we can clearly understand how ancient humans lived.