As reported by the BBC, European scientists have developed robotic fish which detects contamination and pollution in water.
The pollution-hunting fish is 1.5 metres long and cost £20,000 for the scientists to develop. It is fitted with sensors which pick up pollutants leaking from ships or undersea pipelines. In fact, the fish reduced the time it takes to detect pollutants from weeks to seconds. 
The fish can communicate with each other, avoid obstacles, map their journey and transmit their data back to shore. Currently undertaking first trials in northern Spain, modifications will then be made to improve the large yellow fish.
Speaking of the pollution detecting project, Luke Speller, Senior Scientist as the research division of technology consultancy, the BMT Group stated, “The idea is that we want to have real-time monitoring of pollution, so that if someone is dumping chemicals or something is leaking, we can get to it straight away, find out what is causing the problem and put a stop to it.”
The project has part-funded by the EU and used expertise from scientists from the University of Essex and the University of Strathclyde. Further input came from the technology consultancy, the BMT Group and from the Tyndall National Institute and Thales Safare, which is a unit of Europe’s largest defence electronics group.
