Show how light changes shape of pupil of eye of both animal and the human nothing is more deceptive than the appearance of a cats eye the pupil or ordinarily appears as a long narrow oval or a vertical black line yet it its 4 natural shape Is circular it Is a jaw mutter ater of the effect of it light in a bright hialit our pupils become very niall circles circle abile those alln e ota oca cat turn into ovala orals or narrow slits the general Ki nerol efrece Is thu the same in either case jase namely to diminish the quan quantity tiry of light passing into the eye curiously enough in the larger animals of the cat tribe such as tigers the pupil sometimes behaves behoves exactly like it A human pupil and when aheu brightly illuminated contracts into a minute circle instead of becoming linear in the case of domestic cuts cats the older the animal the more frequently does the pupil of the eye assume a circular I 1 team |