Boxer who walks using only his front legs after being born with his hind legs fused together, resulting in amputation. His story began receiving major attention when a YouTube video of him running on the beach went viral, being viewed more than 6 million times.
He was raised in Washington.
His Instagram account, Duncan Lou Who, currently boasts more than 140,000 followers.
His owners are Gary Walters and Amanda Giese, who run Panda Paws, a rescue home for special needs dogs.
Like Tori the Bichon Frise, he is an internet-famous dog.