At https://phys.org/print441015805.html … advances in ocean monitoring are improving our understanding of the sea and its environment – from marine creatures to sea surface temperature changes. Rsearch ships are costly and sea conditions are not always ideal for crew and researcher alike. The Auton Naut, it is hoped, will change things, offering a cheaper alternative. The boat is propelled by a wave foil that harvests energy from the natural pitch and rolling at sea – a commercial application of wave propulsion. It can remain at sea for months and at times when it is too rough for mortals to spend any time on the waves. It is also so quiet that it can monitor the whistles and clicks of dolphins.