The United States is facing increasing international pressure to place limitations on the use of military sonar, the underwater equivalent of radar that has been linked to mass strandings of whales.

Northrop Grumman has demonstrated the integration of its AN/AQS-24 minehunting system with a Mine Countermeasures Unmanned ...

SAN DIEGO — The U.S. Navy plans to increase sonar testing over the next five years, even as research it funded reveals worrying signs that the loud underwater noise could disturb whales and dolphins.

Blue whale off the coast of California. (Photo by Ari Friedlaender, NMFS permit 14534-2) Some blue whales off the coast of California change their behavior when exposed to underwater sounds like those ...

ANCHORAGE, Alaska – A naval exercise off the Australian coast using submarine-hunting sonar could kill whales or cause them to become stranded, the International Whaling Commission warned in a report.

The Navy proposes continued sonar use throughout the region's waters in its latest environmental impact statement, despite an increase in beaked whales washing up on Guam's shores and research ...

Noises from pile-driving, explosives, ship motors and other industrial activities have all been linked to adverse effects on marine wildlife. A new study, funded by the US Navy and published in ...