Does Military Sonar Kill Marine Wildlife?: Scientific American

Unfortunately for many whales, dolphins and other marine life, the use of underwater sonar (short for sound navigation and ranging) can lead to injury and even death. Sonar systems—first developed by the U.S. Navy to detect enemy submarines—generate slow-rolling sound waves topping out at around 235 decibels;

via Does Military Sonar Kill Marine Wildlife?: Scientific American.

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