Hydrophones

By on September 19, 2014
This image is featured as part of the article Lindblad Expeditions.
Hydrophones

Hydrophones, or underwater microphones are onboard National Geographic Orion, National Geographic Explorer, National Geographic Sea Lion, and National Geographic Sea Bird to reveal rich facets of the marine world. When the opportunity is right, naturalists can deploy the hydrophones to capture haunting sounds made by whales or sea lions underwater.

photo: www.expeditions.com