The Paleolithic Age　旧石器時代

The Paleolithic Age was colder than today, and the earth was in the cold period called the Ice Age. At that time, the Japanese Archipelago was connected to the continent. The sea water was reduced due to the glaciers, and the water surface was more than 100m lower than today. The average temperature was also more than 7 degrees Celsius lower than today, and the climate in Japan is thought to be like that of Siberia today.

旧石器時代は今よりも寒く、地球は氷河時代と呼ばれる寒冷な時代でした。その頃、日本列島は大陸と陸続きでした。氷河のため海水が減り、現在よりも水面が１００ｍ以上下がっていたのです。平均気温は今よりも７℃以上低く、日本は現在のシベリアと同じような気候だったと考えられています。