Frog Eyes

A frog has bulging eyes.

A frog has three eyelid membranes. One is transparent (see through) to protect the eyes when the frog is underwater. The other two eyelid membranes vary from translucent (clear) to opaque (cloudy).

Its eyes are at the top of its head, and may be the only part of a submerged frog that is seen above the water. 

A frog’s iris can have a range of colours and its pupil can be a variety of shapes. 

The iris can be gold, red, dark, or patterned. 

Its pupil can be a horizontal slit, a vertical slit, triangular shaped, or circular. 

Photographer: Martina Nicolls

Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM

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