The reasons why cats like cardboard boxes:
1. Cats like cardboard boxes because cats have a natural tendency to like narrow and dark spaces.
2. Cats will feel safe in cardboard boxes. Nudity or too much space in the eyes of cats will make many cats feel scared, but the space in the cardboard box is just right for them, which will bring them a certain sense of security. So this is why cats would rather sleep in a cardboard box than a luxurious cat bed.
3. Cats feel that cardboard boxes are warm in winter and cool in summer.
4. Cats with boxes can adapt to the new environment faster than cats without boxes, eliminate tension earlier, and prefer to communicate and get close to humans.

5. Just playing. Cats chewing on cartons may be simply playing. Some kittens are more naughty, and a piece of paper towel or paper ball can keep them entertained for a long time.

6. Attracted by smell. If a cat tears out a cardboard box and eats it, it may be because there is a smell he likes on it. If the cardboard box is used to hold some food, then the smell of some food may be tainted on it.

7. Feeling anxious. When some cats feel anxious, stressed or bored, they may chew on cardboard boxes to vent their anger.

8. In the period of tooth replacement. If the kittens are a few months old, they may bite the cardboard box because they are in the teething period and their teeth feel itchy and uncomfortable, so they bite the cardboard box to achieve the effect of grinding their teeth to relieve the discomfort.

9. Pica. If your cat eats something from a cardboard box after biting it, it may be pica. The usual cause of pica in cats is a lack of trace elements, fiber, minerals and other nutrients.

Benefits of cats liking cardboard boxes:
1. For soft cat nests, cardboard boxes can not only sleep, but also sharpen their claws. It has an extra layer of functions, and you can use the box to sharpen your claws. The person who shovels poop doesn't get angry, it feels good, and the cardboard box doesn't have any peculiar smell. The cat loves it.
2. The cardboard box will keep heat in winter and will be very cool in summer. Especially in winter, it will feel comfortable for cats, and kittens will enjoy it very much.
3. Cardboard boxes are affordable and fun, and are the best choice for shit collectors.