“Through the chain of vets and trainers the message came back – that they were missing a beluga ... “The location of the beluga whales very close to the submarines and the surface vessels ...

The Blue Planet II Team from the BBC nature show was observing animals feeding on a whale carcass when the sharks attacked their submarine. A video posted on YouTube by BBC News shows the ...

In August 1941, during the execution of a combat mission in the southwestern part of the Peter the Great Bay, two small submarines of the Pacific Fleet, "M-49" and "M-63," went missing.

China unveiled a high-tech, high-speed submersible unmanned surface vessel called Blue Whale on Monday ... and infrastructure inspections, including submarine cable maintenance.

After the war, in the 1870s the Navy tested out another hand-cranked submarine, the Intelligent Whale. The tests were deemed unsuccessful. The sub is now on display at the National Guard Militia ...

and grey whale calves. The findings provide insights into predator-prey interactions in this submarine canyon/deep-water environment.