Zambia find shows humans have built with wood for 476,000 years
Along the banks of the Kalambo River in Zambia near Africa's second-highest waterfall, archaeologists have excavated two logs of the large-fruited bushwillow tree that were notched, shaped and joined nearly half a million years ago. The logs, modified using stone tools, appear to have been part of a framework for a structure, a conclusion that contradicts the notion humans at that time simply roamed the landscape hunting and gathering resources. "Not only did the working of trees require considerable skill, the right tools and planning, the effort involved suggests that the makers ...