Think you'd be safe on the water when the Robocalypse happens, humans? Think again:
... researchers Chung Changhyun and Motomu Nakashima at the Tokyo Institute of Technology have developed a robot that can faithfully reproduce a swimmer’s whole-body motion while measuring water resistance. [...]
To create the robot, the researchers first performed a 3D body scan of a real person. A 1/2 scale model was built using 3D printed parts. The robot was then outfitted with 20 water-proof motors, and programmed the necessary motions to reproduce realistic crawl, breaststroke, backstroke, butterfly, and even dog paddling and treading water.
Plastic Pals has the post: Link