In time to come robots may be doing most of the human work at home and factories efficiently and economically. The Swiss guys over at ETH Zurich are working on developing a concept of fin propulsion sea turtle robot, a machine that would swim efficiently while carrying cargo in its shell. In reality it will be called Naro-Tartaruga, currently a cylindrical aluminum vessel with a couple of flippers, has top speed of over 7 knots which is faster than a real sea turtle.
The turtle has three actuators per fin, and each actuate the fin axle independently it will also be carrying different sensors like pressure sensor, temperature sensors, gyros, GPS (surface), motor encoders, water leakage sensor and water flow sensors. The end goal is to bring underwater autonomous vehicles to reality with future development and research on underwater autonomy.