They bring home four small orphan hedgehogs, but they don't know that someone is going to adopt them

For a young hedgehog to survive without the help of the mother is practically impossible in the first few weeks of life, just like the puppies of other animals. For this reason, the situation you see here is so special: 4 hedgehogs were found without a mother but the cat Sonya, who already had her kittens, didn't hesitate to adopt them. Look at how the family is now compact and solid as if the differences (rather obvious) didn't exist.