Vincent is a 3-year-old cat who had no back legs. A video of Vincent walking with his new metal legs has gone viral.

Dr. Mary Sarah Bergh is a veterinarian at Iowa State University. She performed the surgery to attach the metal legs. She posted a YouTube video of Vincent walking last week. Over the weekend, the video and Vincent’s story took off on social media. By Monday, the video had received nearly 500,000 views on YouTube. Vincent the cat is now one of an estimated 25 animals in the world that have had this kind of surgery. Dr. Bergh says Vincent is able to walk around very well now, but he can’t yet jump or walk down stairs.