Built to last: Extraordinary ancient architecture at Kalambo Falls
In 2019, excavations at Kalambo Falls in Zambia produced a range of wooden objects. These included structural elements that have been dated using cutting-edge technology to an almost unbelievably ancient era. The results force us to rethink everything we thought we knew about the capabilities of early humans, as Larry Barham and Geoff Duller told Matthew Symonds.