Methods for determining the age of a Korat cat:
1. Observe the fur. Generally, cats with white streaks or white whiskers are senior cats, and the fur of kittens is softer than that of senior cats.
2. Check the teeth. Kittens under four months old do not have molars, kittens at six months old have all their teeth, kittens at three years old have teeth that start to turn yellow, and kittens over five years old have obvious tartar buildup. 
3. Observe the personality. Adult cats are not as curious as kittens and their behavior is more stable.
4. Check the eyes. Kittens usually open their eyes around 2 weeks after birth. If your kitten hasn't opened its eyes yet, it's less than 2 weeks old. If its eyes are open, its ears are erect, and it has small teeth, it's about 1 month old.
5. Check your weight. Weight can also be used as a reference for judging age. Generally speaking, the older you are, the heavier you are.
