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. 12. ...

It's always sad when an animal passes away, and it's usually just sad for the people that knew and loved the pet in person. When a pet that has won the hearts of people from all over the globe passes, ...