Evidence from documentary films support (1) the suggested habitat and substrate of Teredinidae and (2) shows that these animals can travel in floating trees and tree-trunks across hundreds of kilometers (3) shipworms in washed up wood, occasionally serve as food for aboriginals of Australië. The author believes that apart from marine organisms, also terrestrial organisms may travel long distances in this way, surviving marine conditions bij taking shelter in and under bark and aided by desalinitating tropical rainshowers.