Our furry feline friends love boxes. Big boxes, small boxes, up high on a shelf, or your suitcase as you try to pack for a holiday – if they fit, they sit. Like most cat behaviour, scientists haven’t quite sussed out why, but we can be confident that the answer involves the cat’s instinct. Cats are ambush predators. This means they wait and hide, and jump on their prey, so a box may appeal to them as it’s the perfect place to stake out their next meal.