Well, she might have. It can be hard for a pup to accept when there’s a new cute creature in the family. Who hurt you, Gus? The Pug looked practically wounded in the video that his mama shared.

Through intensive breeding, humans have pushed breeds such as pug dogs and Persian cats to evolve with very similar skulls and 'smushed' faces, so they're more similar to each other than they are to ...

Doug the Pug introduced his new sister, a rescue pug named Dory, to his millions of followers in May Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE since 2013.