In the early '70s, Roger Payne and an ocean acoustician published a theoretical paper pointing out that it was possible that sound could transmit over these large areas, but very few biologists believed it.
70年代前半に 海洋音響学者のロジャー・ペイン氏が 理論的な論文を発表し 音はこのような広範囲に 伝搬しうることを指摘しましたが 生物学者の多くは信じませんでした