A new study gives an insight into the mysterious ‘whale song’ — the low-frequency vocalisations by the world’s largest mammals that have fascinated marine biologists for years. According to this study by European and American researchers, a specialised larynx (voice box) helps whales produce a sound that’s capable of travelling large distances. The peer-reviewed study, which was published in Nature Wednesday, also says that the structure of the larynx also imposes restrictions on whale larynges