The reasons why cats like to lick other cats

1. The mother cat licks the kitten vigorously, which means that the mother cat helps the kitten clean its body.

2. It is a kind of goodwill behavior, which means that one cat shows goodwill to another cat, or two cats are getting familiar with each other.

3. Declare sovereignty and reward cats with low status. Usually it's the high-status cat that licks the low-status cat.

4. It may be that two cats of the opposite sex confirm each other’s smell before mating.

The reasons why cats lick themselves

1. The owner has ignored the cat for a long time, and the cat feels bored and will keep licking its fur to relieve the boredom.

2. Cats under ultraviolet light will synthesize vitamin D in their hair. Licking your fur can replenish yourself with vitamin D.

3. When stressed, cats will lick their fur frequently to relieve their emotions.

4. Cat’s saliva also has a disinfecting function and it wants to clean its own hair.

5. If a cat feels itchy or has physical pain, it will want to relieve it by licking its fur.