The loudest and most disruptive anthropogenic ocean sounds come from military sonar, oil exploration and industrial shipping, and the Center is working to protect our marine life from each of these ...

Ultrasonic sounds are high-frequency sound waves that exceed 20,000 hertz, a range far beyond what the human ear can detect.

Learn how to use iPhone's Background Sounds feature to play calming ambient audio for better focus and relaxation.

These ripples are waves travelling through the water. Like ocean waves, these ripples are transverse waves because the surface of the water moves up and down, at 90° to the direction that the ...