Song Marianas trench: scientists explain mysterious sound from the deep ocean

For many years scientists were puzzled by the hypnotic soundcoming from the deepest depression the World ocean. Now they think that finally identified the source is elusive minke whales.

The strange sounds were first recorded in the Mariana trench East of GUAM in 2014. Unusual "song", like the sound of another world, sounds on the purity of from 38 to 8000 Hertz.

According to the researcher of bioacoustics Sharon Neikirk, these sounds are different from anything scientists have heard before, and the "song" consists of several parts. Low-frequency moans can be typical for baleen whales, but what makes "the song" special — this is the second part and the metallic shade of sound in the finale that makes this sound unique.

According to scientists, it is somewhat reminiscent of the sound of a dwarf minke whales off the Great Barrier reef off the northeast coast of Australia. Like other baleen whales, eat the whales, using their baleen plates to filter krill and small fish. Their sounds differ depending on the habitat. About these whales is little known, because they do not spend a lot of time on the surface and travel to the more remote areas of the open seas. Scientists hope to mount an expedition to the acoustic localization, find the animals, take samples for biopsy and to accurately determine the source of the sound.

Translated by «Yandex.Translator»