Back in 2014, scientists recorded this mysterious sound coming from
deep under the surface of the ocean.
It has since been named the bio twang, but it
has perplexed marine researchers as they could not identify the
source of the sound.
That is until now.
Experts say these haunting marine sounds are actually the calls
of the birds whale moving across vast areas of open
ocean.
They say they weren't able to identify it before because
birds whale populations and movements around our planet's oceans are
not well known.
But further research in the area narrowed down the culprit
of the sound, with researchers identifying 9 specific whales they
believe the calls came from.
And this provides new evidence for even broader distribution of
these marine mammals and suggests higher numbers of them in
western North Pacific waters.
With the researchers concluding, we identified a consistent seasonal presence
of bio twangs only in the Mariana Archipelago and to
the east at Wake Island.
This suggests the bio twang may be a call specific
to a western North Pacific population of birds, whales.