Below, our in-house vet, Dr. Rebecca MacMillan, has explained why cats can't laugh, whether they can smile, plus the five signs of a happy cat. Let's dive in! From slow blinking to kneading ...

Quokka is known as the happiest animal in the world having a permanent smile on their face, making it a symbol of Joy.

They have aviation-grade aluminium alloy bodies, a screen for a face, and pointy, cat-like ears ... not only food to customers, but also a smile or wink whenever they receive a pat on the head.