On Thursday, a zebra named Sero escaped from the Seoul Children’s Grand Park and was found trotting around the South Korean capital, shocking passersby. Videos of Sero running down brick alleys and swerving cars on a busy road went viral on social media. After a three-hour chase, he was brought back to his pen. But the three-year-old zebra wasn’t always this unruly, zoo officials said. According to a video published by the zoo, Sero’s behavior began changing when he lost his parents in 2021 and 2022. He had tried to fight the kangaroo in the neighboring pen, and also began refusing to eat apples and carrots—food he loved. Sero’s behavior after experiencing loss would not surprise animal researchers, who have found that animals are capable of experiencing grief and that it could manifest as changes to their appetite, sociability, sleep, and stress. To prevent Sero from fleeing again, the zoo plans to get him a roommate—a female zebra, according to the Korea Times. 🎥: Gwangjin Fire Station #shorts Click here to SUBSCRIBE to VICE Asia: https://bit.ly/2LhqAR9 Connect with VICE Asia: Check out our full video catalog: https://bit.ly/2P3Y0pv Videos, daily editorial and more: http://vice.com/en_asia More videos from the VICE network: https://fb.com/viceasia/videos/ Like VICE Asia on Facebook: http://fb.com/viceasia Follow VICE Asia on Twitter: https://twitter.com/viceasia Follow us on Instagram: https://www.instagram.com/viceasia/