In the depths of the Mariana Trench, researchers have recorded unknown sounds that could potentially be from a type of whale. The complex noises are unlike any previously known whale song, with an enormous frequency range that includes both low, dull sounds and high-pitched squeaks. Further investigations are needed to determine which animal is responsible for these mysterious sounds.
Sharon Nieukirk and her colleagues from Oregon State University used autonomous underwater vehicles equipped with microphones and sensors to explore the deepest parts of the ocean. The recordings revealed strange and unique sounds that lasted between 2.5 and 3.5 seconds, covering an unusual range of frequencies from 38 Hertz to almost metallic-sounding 8,000 Hertz. While the low-frequency sounds are typical of baleen whales, the high-pitched, almost nasal component is what makes these sounds truly unique.
Biologists believe that the unknown sounds could be from a type of whale, but it is unclear which one. The versatility of the sounds suggests that they could be from a dwarf whale, which is known to use different sounds for communication in different regions. However, this raises further questions as dwarf whales typically only call during the winter and mating season, whereas the “Western Pacific Biotwang” sound was recorded throughout the year.
The discovery of these mysterious sounds highlights the vastness and complexity of the ocean and the many unknown creatures that inhabit it. Further research is needed to determine the source of these sounds and what they could mean for the marine ecosystem.
