Cat pupil changes are indeed closely related to their emotions. Changes in the pupils can reflect the cat's current mental state and adaptability to the environment.

When a cat is on high alert or is staring at something intently, the pupils It may become narrow and appear as a vertical slit. At this time, the cat may be preparing for a potential threat or prey and may not be in the mood to interact. If you want to connect with your cat at this time, consider playing a hunting game to help them release some energy.