Ellie, a four-year-old black-and-white cat in Virginia, went viral on Twitter for her "sad" life story. "Y'all. This is the saddest thing I've ever seen," wrote Twitter user @revengegrill on Dec ...

This adorable fur ball, Luhu, has a permanent sad face due to a developmental defect that he was born with. Luhu is a five-year-old cat who lives in Beijing, China, with his owner, Maggie Liu.