Professor Zhang: the prehistoric essential tools found in South America existed 13,000 years ago  Some archaeologists believe that these tools were used by people whose ancestors migrated from Siberia to Alaska  This view is untenable  In order to reach South America, these people had to trek 13, 000 years ago, and 13, 000-year-old wooden tools were never found between Alaska and South America  Researcher Li: I'm afraid you've overlooked: these wooden tools are found in peat bogs, which are rarely found in North America
Wooden tools rot and dissolve in ordinary soil within a few years
It is pointed out that Professor Zhang misinterpreted the views of archaeologists.