Poison-Injecting Robot Submarine

This one-shot poison (which is harmless to everything else on the reef) is what makes autonomous robotic sea star control possible, since it means that a robot can efficiently target individual sea stars without having to try and keep track of which ones it’s injected already so it can go back and repeat the process nine more times. At Queensland University of Technology in Australia, a group of researchers led by Matthew Dunbabin and Peter Corke spent the last decade working on COTSBot,* which has been specifically designed to seek out and murder crown-of-thorns sea stars as mercilessly and efficiently as possible.

http://spectrum.ieee.org/automaton/robotics/industrial-robots/poison-robot-submarine