From the Beeb: Reed boat sets off on ocean trip.
A team of explorers has set sail from the US for Spain in a 12-metre-long (40ft) reed boat, hoping to spend about two months sailing across the Atlantic.
They are trying to prove that Stone Age people crossed the ocean thousands of years before Christopher Columbus in the 15th Century.
Aymara Indians in Bolivia, who still use reed boats, built the new vessel.
It takes its inspiration from prehistoric European cave paintings dating back more than 10,000 years. [continue]