* Male cats have testicles that are located in a pouch just behind the anus.
* Female cats have a vulva which is a small opening just below the anus.
However, it's important to note that:
* Kittens are difficult to sex until they are a few weeks old.
* Older cats can sometimes have their testicles retract into their abdomen, making it difficult to see them.
If you are unsure, it's best to consult with a veterinarian.