Frogs have variable kinds of eye types. The colored part of the eye is called the iris
(EYE-riss). They can be brown, green, silver, red, bronze, and even gold.
The pupils come in all kinds of shapes too!
(2) Round pupils: Some frogs have round pupils just like you and me. Newts and Salamanders also have round pupils.
(2) Vertical pupils: Vertical pupils that look like a cats eye are really good for night vision and respond quickly to changes in light.
(3) Horizontal-Shaped pupils: These are the more common pupil, good for normal day-vision.
(4) Heart-Shaped pupils: I'm not sure if it serves any purpose, but it sure looks neat! Oriental fire-bellied Toads have this type of pupil.
Some frogs have Triangular pupils, and some even have Star-Shaped pupils!
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