If you have a cat, you've probably noticed its strange habit of massaging a blanket or your lap with its paws.
Few people know that there is a scientific explanation for this behavior of cats.
Zoologists call this habit of cats "milk step".
When a cat nurses her kittens, they massage her belly with their paws to stimulate milk production, hence the name.
For adults, the “milk step” is a kind of psychotherapy that provides a feeling of security and calm.
Kittens raised on artificial feeding do not practice the “milk step” in adulthood.