With their huge personalities and lovable antics, it’s no surprise that felines starred among the first memes on the internet ...

I first met Grumpy Cat when she was receiving her lifetime achievement award in 2013 Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE since 2013. Her work has previously ...

LOL! Merlin looks ready to throw paws at anyone ... others couldn't help but compare the grumpy cat's look to other unhappy-looking characters. Someone even compared him to one of those 'mushrooms ...

Titled “Grumpy” in reference to a string of previous “blank cat” memes, Tardar Sauce only looks grumpy for medical reasons. It later came out that her signature resting grumpy face is a ...