When your feline is all curled up in the sun or sitting on your lap, you may hear a tender reverberation as they breathe in and out. It’s arguably one of the most recognizable signs of contentment.

Occasionally, people experience more or less loud hiccups, and some animal species, such as dogs, can also be affected by hiccups. But have you ever heard or, rather, seen your cat hiccup? PETBOOK ...