Cold War submarine sensors revealed whale songs travelling across entire oceans

The US Navy's secret listening network, SOSUS, built during the Cold War, was meant to track Soviet submarines. Instead, it captured the haunting songs of whales. These low-frequency sounds, too deep for humans to hear, revealed whales communicating across vast ocean distances. This accidental discovery transformed our understanding of marine life.

Cold War submarine sensors revealed whale songs travelling across entire oceans
The US Navy's secret listening network, SOSUS, built during the Cold War, was meant to track Soviet submarines. Instead, it captured the haunting songs of whales. These low-frequency sounds, too deep for humans to hear, revealed whales communicating across vast ocean distances. This accidental discovery transformed our understanding of marine life.