Oldest Whale Song Reveals Quieter Ocean Era

A humpback whale song, recorded in March 1949 in Bermuda, represents the oldest known audio capture of whale vocalizations. Discovered on archival audio equipment, this recording provides a rare glimpse into the auditory environment of the late 1940s, which was considerably quieter than today's oceans. Researchers at Woods Hole Oceanographic Institution recovered the sound while digitizing old recordings, finding it preserved on a Gray Audograph disc.

The recovered sounds are significant not only for studying whale communication but also for reconstructing the ocean's soundscape from that era. This historical audio context is invaluable for understanding how increased human-made noise, such as shipping traffic, may impact whale communication. Scientists note that whales can alter their calls based on environmental sounds, a behavior highlighted by the research comparing past and present ocean acoustics.