But they actually make more of a click click click sound. Scientists have now recorded the first ever noises made by the ...
The spotted estuary smoothhound, or “rig shark”, a modest little shark with mosaic teeth and a fondness for crustaceans, ...
Research by the U.S. Navy has developed a new passive sonar method that could revolutionize stealth underwater drones.
The time-domain waveform of the velocity signal after Hilbert transformation and filtered demodulation is highly consistent with the time-domain waveform obtained using a hydrophone at the same point.