In 1967, an American biologist began listening to sounds from the ocean that he found both spectacular and beautiful. It was the sound of whales.
http://www.bbc.com/news/av/stories-42267618/when-the-world-sang-with-whales
In 1967, an American biologist began listening to sounds from the ocean that he found both spectacular and beautiful. It was the sound of whales.
http://www.bbc.com/news/av/stories-42267618/when-the-world-sang-with-whales