Cats are known for being patient only when they want to be, and one viral video of a grumpy feline shows just how quickly that patience can disappear. In the clip, a cat’s calm mood changes right away ...

“Some days are grumpier than others,” the Instagram caption read. It appeared next to a photo of the Internet’s most famous and beloved cat, the one with the perpetually miserable mug. But this was no ...

(Reuters) - Grumpy Cat, the internet's most famous scowling feline, not only unveiled a waxwork of herself this weekend, but also joined the cast of Broadway musical "Cats" to close out the show with ...