What are the signs that an established cat is accepting a new cat?
The old cat accepts the new cat's payment:
1. The old man will slowly approach the new cat and sniff its rear end to familiarize himself with its scent, and he will not bark at it during the approach.
2. Old cats and new cats can eat together from the same bowl, sharing their food. They don't fight easily or get into arguments while eating. 
3. When an older cat starts to care for kittens, it's because it wants the kittens to be clean and have their own scent. This is already a sign that the older cat really likes the kittens. If the new kittens are also willing to give the older cats their scent, the owner can rest assured.
4. Older cats will play with cat toys and use the same litter box with newer cats, which shows that they are accepting each other.
