Robocarp: Mecha Fish to Track Oil Spills

Researchers at the University of Washington in Seattle have developed a new type of robotic fish which moves through the water as a real fish does: with fins. Such locomotion makes the mechafish more energy-efficient and maneuverable. But that's not all: these fish-bots can communiate with each other via sonar-like pings, though the developers are working on a more advanced communications system. And, yes, the military is interested. Speaking of which, iRobot has  won the commercial rights to the another University of Washington project called the Seaglider. iRobot is no stranger to such projects. While most widely known for their Roomba, iRobot also builds a bomb-busting robot that is on active duty in Afghanistan, as well as a combat robot that is meant to deploy this year.