A zebra named Sero captured the hearts of millions this week, as videos emerged of the animal galloping through the bustling streets of Seoul. But behind the excitement of the runaway zebra lies a heartbreaking tale of loss and pain. According to reports, Sero lost both of his parents recently, which caused a drastic change in his behavior. Despite efforts by the zoo to help the young zebra cope with his loss, Sero managed to break through the wooden fences of his enclosure and escape into the city. For three hours, Sero roamed free, galloping through the busy streets of Seoul, dodging cars and pedestrians alike. Videos of the runaway zebra quickly went viral, capturing the hearts of millions around the world.