A fifteen-year-old lion named Ruben lived in solitary misery for years in an abandoned zoo in Armenia. The “world’s loneliest lion” has  found freedom at last in a South Africa sanctuary. After the private zoo in Armenia shut down, all its animals found new homes except for one, according to the animal-rescue group Animal Defenders International. Ruben spent five years in a small concrete cell, alone, as his health deteriorated due to malnutrition and lack of exercise.