The world's grumpiest cat!

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Manul, the 'grumpiest cat,' confirmed on the world's highest mountain

Grumpiest cat' leaves its calling card on the world's highest mountain

RIP Grumpy Cat: The Science Behind The Feline's Famous Frown

Grumpy Cat' wins $700,000 in federal case over identity

Grumpy Cat's owner quit her day job, but denies claim the crabby feline has made $100 million - ABC7 Los Angeles

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This may be the world's grumpiest cat

Grumpy Cat, the internet's favorite cat, has died

Internet finds world's grumpiest cat, named Tardar Sauce

The world's grumpiest cat on the world's highest mountain! Researchers have found evidence of the manul (a.k.a. Pallas cat) on the slopes…

Grumpy Cat, internet legend known as the world's grumpiest cat, has died

Grumpy Cat, Inc.: The business of an internet sensation

Do you know 'the grumpiest cat in the world'? - Snow Leopard Trust