Grumpy Cat, the viral feline, died Tuesday, but she probably still has more Instagram followers than you. The seven-year-old died due to complications from a urinary tract infection, her ...

It's the reason behind Grumpy Cat's small frame, and why her rear end wobbles when she walks. "Otherwise she is a perfect little kitty," her website says. Sources: Catster, Grumpy Cat Grumpy Cat ...

The targets: The economy. Teenagers. Some informally dub it “grumpy old man complex.” British author Carol Wyer labels it “irritable male syndrome,” a spike in the outward crankiness of ...

But the grumpy dogs did noticeably better when a stranger demonstrated the way to get the object. “They were more attentive,” Dr. Pongracz said. Why is a question that remains to be answered.

Yet maintaining a bias towards grumpy — or even, occasionally, getting a little angry — is evidently good for you. And then there’s this: an Institute for the Study of Labor paper determined ...