Robot Fish to Detect Ocean Pollution

http://news.nationalgeographic.com/news/2009/03/090320-robot-fish-video.html

Scientists will soon relese a robot fish modeled after a carp into the waters of Northern Spain to collect data on pollution and transmit this information back to the research center. This robot fish will set of in 2011, but as of right now it is still "swimming" in the London Aquarium. The fish will detect hazards such as chemical spills and fertiler runoffs, and will allow officials to understand the impact pollution has on the water in the area. The scientists also want to make sure that the robot fish is not mistaken for prey by other fish, or that it does not disrupt the natural environment in the water.