Scientists and documentary filmmakers are scheduled to depart in the fall on a search for a yet-unseen whale, possibly a hybrid between the fin and blue whale, which has been heard on recordings for decades. The whale has been dubbed "the loneliest whale in the world" because its vocalizations were in a much higher range than any other whale species and researchers never heard a return call. "We never had a visual. We don't know what species it is. We don't know if it has a malformation. Obviously, it's healthy. It's been alive all these years. Is he alone? I don't know," said research team member Mary-Ann Daher.

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