Fin whale (IMAGE) Norwegian University of Science and Technology Caption Fin whales are the second largest mammals on the planet. The development of a new technology that allows researchers to eavesdrop on the animals as they swim in the Arctic could one day help prevent ship strikes. Credit NOAA Fisheries Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.