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 ...

However, only one of these is a “genuine” or Duchenne smile. Discovered by French anatomist Duchenne de Boulogne in 1862, the key difference between this “real” happy smile and a “fake ...