The search for the loneliest whale in the world

And how the quest uncovered a bigger problem. When people learned he vocalised at a much higher pitch than other whales, they wondered: could other whales hear him? Was he lonely? Kieran Mulvaney reviews how a new documentary, “The Loneliest Whale: the Search for 52”, searches for answers to these questions, but what was discovered was much more than the director and crew anticipated.