War Snails!

http://www.nytimes.com/2012/03/21/science/the-snails-of-war-and-other-robotics-experiments.html


and the US Govt.'s research in to Hybrid Insect/Electromechanical systems:http://www.darpa.mil/Our_Work/MTO/Programs/Hybrid_Insect_Micro_Electromechanical_Systems_(HI-MEMS).aspx