If a cat discovers a cardboard box or a box, it doesn't take long - and it sits inside. Even a rectangle just stuck to the floor seems to magically attract them.
A cozy environment releases endorphins in the cat's brain, i.e. triggers feelings of happiness. Boxes and cartons are small, confined spaces that provide shelter for cats. They feel safe here. You can find even more exciting animal topics in the free partner newsletter from Landtiere.de, which you can subscribe to right here.