NEW YORK (AP) — Researchers have uncovered a simple structure from the Stone Age that may be the oldest evidence yet of early humans building with wood. But it is much more complex than I thought.”Barham and his team dug up the log structure — plus a handful of wooden tools — from a riverbed site that sits above a waterfall in Zambia. They think the crossed logs could have been the base for a bigger structure like a walkway or a platform. The log structure was made at least 476,000 years ago, while the wood tools are slightly younger, under 400,000 years old. ___The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group.

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Persons: It's, ”, Larry Barham, ” Barham, Barham, ’ ” Barham, couldn't, Geoff, —, Dirk Leder, Annemieke Milks, “, ” Milks Organizations: —, University of Liverpool, telltale, Aberystwyth University, Cultural Heritage, University of Reading, Associated Press Health, Science Department, Howard Hughes Medical Institute’s Science, Educational Media Group, AP Locations: Nature, Zambia, Wales, Africa, Germany’s, Saxony