Octobot uses webbed arms to swim faster
Fish in Mediterranean Sea follow alongside the robot
![shoe box–sized robotic octopus](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/09/mr_octobot_feat.jpg?fit=860%2C460&ssl=1)
UNDERWATER ROBOT A shoe box–sized robotic octopus with arms and a web made of soft silicone can speed through the water faster than bots without a web.
D. Tsakiris/Institute of Computer Science/FORTH