Narwhals show physiological disruption in response to seismic survey ship noise

In this drone image, researchers in the water watch as a narwhal swims away with a physiological monitoring tag (yellow instrument attached with suction cups on the back), which will record heart rate, breathing rate, stroking frequency, and depth for 1-3 days. Credit: Eva Garde, Greenland Institute of Natural Science. The reaction of narwhals to … Read more