Researchers have said that a fossilized whale skull found outside Charleston, South Carolina shows all the tell-tales signs that are related to echolocation.
The Navy plans to increase sonar testing in US waters over the next five years even as studies it funded reveal worrying signs that the loud underwater noise could disturb whales and dolphins.
Blindfolded dolphin can imitate movements of other dolphins, almost as if it has a sixth sense.
Scientists developed a new kind of underwater sonar that can detect objects like reefs.
Scientists develops a new underwater device that can outperform standard sonar and detect objects through bubble clouds.
Day in Pics: 1st October
Showbiz World - October 1, 2014
George Clooney - Amal Alamuddin grand Venice wedding