Researchers on Cape Cod, Massachusetts, recently discovered the oldest known recordings of whale sounds and believe the discovery could help understand how the animals communicate.
The recording is the song of a humpback whale, a species of large whale known for its complex songs. Researchers at Woods Hole Oceanographic Institution in Falmouth, Massachusetts, said the sounds were recorded in March 1949 off Bermuda.
The recording is important because it documents whale song during a time when the ocean was quieter, scientists said.
Here’s a breakdown by the numbers.
20 years
