When fin whale sounds were first recorded by US biologists, they did not realize that these unusually loud, long, pure and regular sounds were being made by whales.
Kai Finvalų garsai buvo įrašyti, tyrėjai nesuprato, kad šitie neįprastai garsūs, ilgi, gryni, ir reguliarūs garsai buvo skleidžiami banginių.