This battle may never end.

A zoo has welcomed one of the world's "grumpiest cats" - and hopes to "turn that frown upside down" in a breeding program.

(CNN) -- Grumpy Cat, arguably the internet's most popular cat and one of its first viral memes, has died aged 7. The furry sensation's family announced her death on Twitter on Friday. "We are ...

The Internet's most beloved cat died this week at age 7 "I'm still Grumpy from the block," the famous cat tweeted with a photo of herself and the American Idol judge in 2014. Grumpy Cat and her owner ...

At this point, you have most likely heard the news that one of the most famous animals on the planet, the legendary Grumpy Cat, aka Tardar Sauce, passed away at age 7 on Tuesday, May 14, according to ...

They have the thickest fur of any feline in the world and can thrive at 16,000 feet elevation, but they're no larger than a ...

The Rays, Grumpy Cat and Sexist Backlash to Stadium Selfies \| The Bandwagon. Bandwagoning is good. Hannah Keyser explains ...

Kitzia the cat has over 56,000 Instagram followers. Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE since 2013, covering pets, animal rescue and wildlife. Grumpy Cat will ...

Add Yahoo as a preferred source to see more of our stories on Google. Grumpy Cat, whose perpetually sad expression launched a thousand memes, has died at age seven, her owner Tabatha Bundesen reported ...

Grumpy Cat, the cantankerous internet sensation known the world over for her sour scowl has died. She was 7 years old. Her owners shared the news of the famed cat’s Tuesday morning passing with a ...