Scientists have observed that blue whale songs have dropped by nearly 40%, a troubling shift in one of the ocean’s most iconic sounds. For the largest animals on Earth, vocalization isn’t random—it’s closely tied to feeding success and overall energy levels. When krill—their primary food source—is abundant, blue whales sing more frequently and for longer periods. But when food becomes scarce, they conserve energy, and their songs grow quieter. The recent decline in vocalizations suggests whales

🎥: Julia Sumerling (@seajewlz) // In 2004, Dr. Jason Gedamke was recording underwater sounds in the Great Barrier Reef, and discovered the dwarf minke is the source of an unusual, complex, and stereotyped vocalization called the “star wars” call. Volume up to hear it! This regional-specific behavioral distinction suggests aggregate or community adaptive behaviors among subspecies of minke whales. | Ocean Conservation Research - OCR

Volume on! Sound travels farther underwater and whale songs can cross an ocean. Stream "Soul of the Ocean" here: https://to.pbs.org/3JfILrZ [VID: Compilation footage of humpback whales singing in the ocean] | Nature | PBS

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

What do whales sound like underwater? Let’s dive in and listen! Listen to different whale sounds and see what they look like on a spectogram, which is a way to visually display sound. #WorldWhaleDay | NOAA Fisheries Service