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flag A 1949 humpback whale song off Bermuda, recorded accidentally, is now the oldest known whale vocalization, offering a rare baseline for studying ocean noise impacts.

flag A humpback whale song recorded off Bermuda in March 1949 has been identified as the oldest known whale vocalization, discovered by Woods Hole Oceanographic Institution researchers during a digitization project. flag Captured accidentally during sonar tests using a Gray Audograph, the sound was preserved on a durable plastic disc—unlike fragile tapes from the era. flag The recording offers a rare glimpse into the ocean’s quieter 1940s soundscape, providing a baseline for studying how modern human-made noise affects whale communication, navigation, and behavior.

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