Here's one that's even faster (and relevant to your username): http://spectrum.ieee.org/automaton/robotics/robotics-hardware/a-cyborg-stingray-made-of-rat-muscl

Here's one that's even faster (and relevant to your username): http://spectrum.ieee.org/automaton/robotics/robotics-hardware/a-cyborg-stingray-made-of-rat-muscles-and-gold http://spectrum.ieee.org/automaton/robotics/robotics-hardwar...