The tame white whale, which locals named Hvaldimir, made headlines five years ago amidst widespread speculation that it was a Russian spy.
Now an expert in the species says she believes the whale did indeed belong to the military and escaped from a naval base in the Arctic Circle.
But Dr Olga Shpak does not believe it was a spy. She believes the beluga was being trained to guard the base and fled because it was a "hooligan". more