What are the three changes in the cat's pupils a day? The cat's pupil changes three times a day: during the day, the pupils will become larger to collect more light; at night, the pupils will become smaller to reduce the entry of light; when frightened, the pupils will become larger to increase the field of view.
The cat's pupils change three times a day: in the morning, the cat's pupils are like a date pit, and at noon, there is only a thin slit left, and at night, the light is very dark, and the cat's pupils will become round.
The cat's pupils can shrink and enlarge with the strength of light. If the cat is in a brighter place, its pupils will shrink; if it is in a darker place, the cat's pupils will enlarge, so that the environment can be seen clearly regardless of day or night, which can be more suitable for the situation of ancestors' hunting in the wild.