There’s no doubt that cats are feisty, adorable and curious animals. Their independent and mischievous nature (combined with some seriously funny quirks) certainly keeps their owners on their toes—and ...

Update 10:10am CT, May 17: Grumpy Cat passed away at age 7 on Friday due to complications from a urinary tract infection. Since the dawn of internet culture, cats have been, shall we say, a fixation.