Mystery whale discovered

A LONE whale with a mysterious voice that matches no other species has been discovered roaming the Pacific.

Researchers identified the whale, which has been wandering the ocean for the past 12 years, after listening to recordings made by the US Navy’s submarine-tracking hydrophones.

Marine biologist Mary Ann Daher, of Woods Hole Oceanographic Institution in Massachusetts, used the partly-declassified records to trace the movements of whales in the north Pacific.

They show that one whale singing at a frequency of around 52 hertz has cruised the ocean every autumn and winter since 1992.

Blue whales typically call at frequencies between 15 and 20 hertz.