Fossilized whale skull shows sonar existed 32 million years ago

Researchers have said that a fossilized whale skull found outside Charleston, South Carolina shows all the tell-tales signs that are related to echolocation.

Scientists believe some whales flee from sonar

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.

Do blindfolded dolphins use ``sixth sense``?

Blindfolded dolphin can imitate movements of other dolphins, almost as if it has a sixth sense.

New sonar detects concealed underwater objects

Scientists developed a new kind of underwater sonar that can detect objects like reefs.

Dolphins inspire a better kind of sonar

Scientists develops a new underwater device that can outperform standard sonar and detect objects through bubble clouds.