If you’ve got a cat, you’ll know that their characteristically cryptic signs of affection ― from headbutting to stretching ― basically require a manual to understand.
Not so with dogs, we tell ourselves. Those wag their tails and wiggle their bottoms to show joy; they lick our faces and jump to greet us when we’re back home.
But perhaps canines are more complex than they look. After all, experts say that one of their most inscrutable (and infuriating) behaviours, stealing your shoes, has a secret meaning.