Why do cats have vertical pupils?
to have sharper vision
to better see in the dark
to be more attractive
it is a useless mutation
The sharpest image is produced by round pupils, and if cats weren’t nocturnal, they probably would have round pupils like us. But the vertical pupil, in combination with horizontal eyelids, gives the cat greater and more accurate control in different types of lighting. A cat may adjust the amount of light by moving eyelids only.
reach: rather globalcatseyesnatureopticsphotographyphysicszoology
Answers by country
to have sharper vision
to better see in the dark
to be more attractive
it is a useless mutation
answers

118

99

103

90

56

120

26143

1099

135

77

48

1208

183

69

451

299

924

54

54

91