Não sei, mas no filme "A Hora do Lobo" (1968) do Ingmar Bergman o narrador

afirma o seguinte:

"The hour of the wolf is the hour between night and dawn. It is the hour when most people die, when sleep is the deepest, when nightmares feel most real. It is the hour when the demons are most powerful. The hour of the wolf is also the hour when most children are born.”