Loneliest creature in the world: A whale whose call is of 52 Hz(blue whales usually vocalize at 10–39 Hz, fin whale at 20 Hz). Its call was first detected in 1989. It's only one of it's kind. Because of this, the animal has been called the loneliest whale in the world.#52hzwhale BTS's 2015 album The Most Beautiful Moment in Life Pt. 2,includes the track "Whalien 52",which explicitly uses the 52-hertz whale as a metaphor for the alienation from others often felt by adolescent.