几年前,美国和希腊的一个考古学家小组到希腊克利特岛的一处峡谷考察,想要找到约1.1万年前在周围海域航海的人们使用过的石器。在寻找过程中,普罗维登斯学院的考古学家托马斯·斯特拉瑟和他的队友无意中发现了一个13厘米长的手斧。这个简单粗糙的工具是用当地一块石英鹅卵石制成的,类似非洲和欧洲大陆发现的约17.5万年前人类祖先使用的手斧。这种石制工具技术已流传百万年,古人用这些石制工 A few years ago a team of archaeologists from the United States and Greece visited a canyon on the island of Crete, Greece, in search of stone tools used by people sailing around the sea around 11,000 years ago. During the search, Thomas Struther, an archeologist at Providence College, and his team-mate unwittingly found a 13-centimeter hand ax. This simple, crude tool is made from a local quartz pebble, similar to the ax used by human ancestors found in Africa and mainland Europe about 175,000 years ago. This stone tools technology has been circulating millions of years, the ancients used these stone workers