Oh, cats. Anyone who has tried to understand one has found that a feline’s fickle moods are simply impossible to predict. But ever wonder what makes cats tick — you know, on the inside? Now you can ...

Nora Auston’s older cat, Bertie, has a history of getting into trouble while roaming her Portland neighborhood. The feline teamed up with another cat to ambush and taunt an elderly dog in its backyard ...